Sailboat Hardware 90mm 3.54" Single Swivel Shackle Fiddle Plain Bearing Block Master BP-0919F 90mm 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-0919FSheave Ø (mm) 90 mmSheave Ø (in) 3.54 inLength (mm)250 mmLength (in)9 5/6 inWeight (g)611 gWeight (oz)21.55 ozMaximum line Ø (mm) 14 mmMaximum line Ø (in)9/16 inMaximum working load (kg)1500 kgMaximum working load (lb)3300 lbBreaking load (kg) 3200 kgBreaking load (lb)7040 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.