Composite triple ball bearing block with carbon cleat on balls. This new ball block is extremely light and strong. Used for jib and mainsheet adjustments on dinghies and small fixed keel boats. Delrin® sheave and balls. Composite cheeks, stainless steel rivets (AISI 316).

Single block features:
Diameter sheave: 38 mm.
Maximum sheet diameter: 10 mm.
Overall height: 80 mm.
Weight: 42 gr.
Breaking load: 600 kg.
Working load: 230 kg.