LEWMAR 50 mm Synchro Fiddle Block - Swivel, Becket, Cam, 29925039BK Depth_1/2" - 1" Depth a sliding Acetal bearing on

a sliding Acetal bearing on a polished stainless steel race takes over

Low-beam track is available with or without pinstop holes

72mm single blocks with toggle heads are great for halyard turning blocks that use integrated mast base studs and external halyards

and efficient even under larger loads and are an ideal solution for modern control line systems on dinghies up to larger yachts

Recipient of both the Dame Award and Sail Magazine’s Freeman-Pittman Award for innovation

LEWMAR 50 mm Synchro Fiddle Block - Swivel, Becket, Cam, 29925039BK Depth_1/2" - 1" Depth a sliding Acetal bearing onLewmar's plain bearing Synchro Blocks are engineered for speed, efficiency, and superior handling. Lewmar uses a combination of scientifically optimized block geometry, a free spin bearing, and a swivel lock self aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems. Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother transfer of power