Marine Boat Yacht Sailboat Dinghy 75mm 2 15/16 Inch Aluminum Padeye Block Small Boat Block Master ALC-7508F Master Hercules Blocks are specialized made for Crusining boats to handle static high load. They are available in Hardcoat-Anodized Aluminum and Hand-Polished Stainless steel. Hercules Blocks include Teardrops, Footlocks, Swivels, and Fiddles. An exclusive Face to Face locker system can be easily engaged to position shacke in either of two directions or just free to swivel. A locker system also can take more loads then traditional ways without damaging the block and hassle. Patent pending in Australia, US, UK, France, Netherlands, China, Germany, and Taiwan. Specification: Brand: Master Part Number: ALC-7508F Sheave Ø (mm) 57 mm Sheave Ø (in) 2 15/16in Length (mm) 117mm Length (in) 4.6in Weight (g) 236g Weight (oz) 8.30oz Maximum line Ø (mm) 19 mm Maximum line Ø (in) 3/4 in Maximum working load (kg) 1150kg Maximum working load (lb) 2530lb Breaking load (kg) 2300 kg Breaking load (lb) 5060 lb •Do not use Master products to human suspension! Destination custom duty/tax are not included in the listing price; it is the customer's responsibility to pay for custom duty if any.