Sailboat Dinghy Hardware 72mm 2 5/6" Single Swivel Shackle Plain Bearing Block Small Boat Block Master BP-7201F 72mm Plain Bearing block can handle extremely high loads. The block features a self-lubricant bearing with Acetal busing. All materials are UV-resistant and Anti-corrosion. 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. •Do not use Master products to human suspension! Specification:Brand: MasterPart Number: BP-7201FSheave Ø (mm) 35 mmSheave Ø (in)1 3/8 inchLength (mm) 140 mmLength (in)5 1/2 inchWeight (g)218 gWeight (oz)7.68ozMaximum line Ø (mm) 12 mmMaximum line Ø (in)1/2 inMaximum working load (kg) 1000 kgMaximum working load (lb) 2200lbBreaking load (kg)2000 kgBreaking load (lb)4400 lb Destination custom duty/tax are not included in the listing price; it is the customer's responsibility to pay for custom duty if any.