25mm Treble Block with Center Becket The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.  Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.32 can be used to create a 6:1 purchase system to aid in lifting heavier objects and decrease the load on the rope Specifications: Max Rope: 8mm Breaking Load: 1250kg

25mm Treble Block with Shackle The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.  Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.31 can be used to create a 6:1 purchase system to aid in lifting heavier objects and decrease the load on the rope Specifications: Max Rope: 8mm Breaking Load: 1250kg

25mm Treble Block with V-Jam The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.  Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.35 can be used to create a 6:1 purchase system to aid in lifting heavier objects and decrease the load on the rope. The V jammer can be used to cleat the rope at any point during lifting or tension Specifications: Max Rope: 8mm Breaking Load: 1250kg

25mm Single Block with Becket The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.                                                          Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.11 features a becket at one end and a clevis pin attachment at the other, so this block could be used for creating a purchase system and easily attached to a fixing point with the clevis pin attachment Specifications: Max Rope: 8mm Breaking Load: 500kg

25mm Double Block with Becket The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.  Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.23 can be used to create a 4:1 or 5:1 purchase system to aid in lifting heavier objects and decrease the load on the rope Specifications: Max Rope: 8mm Breaking Load: 1000kg

25mm Single Block with V-Jam The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.                        Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.13 has a becket attachment to splice or tie off to, as well as a V Jammer This block could be used to create a 2:1 purchase system for lifting that can be easily locked off on the V Jammer Specifications: Max Rope: 8mm Breaking Load: 500kg

25mm Single Block with Clevis Pin The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.  Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The Clevis Pin attachment makes the block easy to fit and remove from lacing eyes, eye bolts, U bolts, etc. Specifications: Max Rope: 8mm Breaking Load: 500kg

25mm Single Block with Shackle The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.  Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.08 features a shackle attachment at the top so that the block can be connected to an attachment point quickly and easily Specifications: Max Rope: 8mm Breaking Load: 500kg

25mm Double Block with Shackle The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light. Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.21 can be used to create a 4:1 purchase system to aid in lifting heavier objects and decrease the load on the rope Specifications: Max Rope: 8mm Breaking Load: 1000kg

25mm Double Block with V-Jam The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.  Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. The 00.25 can be used to create a 4:1 or 5:1 purchase system to aid in lifting heavier objects and decrease the load on the rope The V jammer enables you to lock off the rope Specifications: Max Rope: 8mm Breaking Load: 1000kg

57mm Quad Block Swivel, Center Becket Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. Features: Sheave Ø (mm) 57 mm Sheave Ø (in) 2 1/4 in Maximum line Ø (mm) 10 mm Maximum line Ø (in) 7/16 in Maximum working load (kg) 1080 kg Maximum working load (lb) 2380 lb

25mm Halyard Block The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light. Features: This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. Specifications: Fixing Holes: 5mm Dia. Max Rope: 8mm Breaking Load: 500kg

25mm Shouldered Block The 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light. Features: When fitted with a lacing eye (25.17), the block will stand up directly and not flop from side to side This range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc. Specifications: Max Rope: 8mm Breaking Load: 500kg

57mm Carbo Air Fiddle Block with Swivel & Becket Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave: 57mm / 2-1/4in Length: 175mm / 6-7/8in Weight: 113g / 4oz Shackle pin: 5mm / 3/16in Maximum line: 10mm / 3/8in Maximum working load: 359kg / 792lb Breaking load: 1080kg / 2380lb

Series 40 Orbit RT Block with Quin, Becket, Cleat & Swivel The Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability. As well as traditional single swivel blocks, the range also includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is extremely versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans. Series 40 Orbit Blocks™ are fitted with our carbon-reinforced C-Cleat™ for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and adjustable for setting your preferred cleating angle. Ball Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range. High Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high-strength grade 2205 stainless steel sheave & hub together with a triple bearing race to maintain low friction at very high loads. Features: Class-leading dynamic and static load ratings Lightweight, yet strong. Toughened, glass fiber reinforced nylon replaces stainless steel straps used in our traditional utility blocks Low friction 2-stage ball bearing system for efficient and effortless trimming Soft attachment, lashing and traditional swivel shackle head options Low profile and compact High performance cleating Applications: Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sportsboats to 8m (26ft) Halyard, vang and backstay applications on boats to 9m (30ft) Control line applications on larger yachts Specifications: Sheave Ø: 1-9/16 in. Max. Rope Ø: 5/16 in. Pin Ø: 5/32" M.W.L.: 1320 lb. B. L.: 2650 lb. Weight: 13.0 oz.