Single Ball Bearing Block with swivel head. 200-05

Single Ball Bearing Block with Swivel Shackle. Delrin(tm) ball bearing sheaves ensures smooth operation for control lines or sheets on small boats. SWL 500 lbs (225kg) Length 3 1/2"(89mm), Width 1 3/16"(30mm), Thickness 19/32"(15mm), Weight 2oz (57g)