Check the listing for details. 90mm Single Swivel Shackle Becket Block - Master BP-0902F. Condition: Brand New. Listed at 89.79 USD. Product Specifications90mm Single Swivel Shackle Becket Block - BP-0902F Sheave Ø (mm)90 mmSheave Ø (in)3 1/2 inMaximum line Ø (mm)14 mmMaximum line Ø (in)9/16 inMWL / BL (kg)1800 / 3000 kgMWL / BL (lb)3968 / 6613 lb Product range - Plain Bearing BlocksMaster plain bearing blocks are available in 35mm, 50mm, 60mm, 72mm and 90mm sizes and multiple configurations. The range features:self-lubricating Acetel bushing for smooth rotation and high static loads,high strength side plates made from a UV stabilised stiff glass-fibre reinforced Nylon composite for lightness,locking mechanism so that the shackle in the “single swivel shackle” models can either rotate freely or be locked in position (only from 50mm),becket pin which is easy to remove or lock into the keyhole with no tools,adjustable cam cleat arms for an optimal exit angle of sheets.