60 mm Ball Bearing Block - Fiddle, Swivel, BecketThe BBB60 Fiddle Becket Block combines a large and small sheave along with a becket for added rigging flexibility. A plastic washer acts as a swivel lock, allowing the shackle to be fixed at 0 or 90. Delrin ball bearings reduce friction, while glass fiber reinforced cheeks enhance durability. Ideal for complex rigging systems such as mainsail sheets or control lines in dynamic sailing environments. Safe working Load: 500 kg Breaking Load: 1000 kg Max