From the folks who invented ball-bearing blocks, this line of blocks boasts an excellent strength-to-weight ratio. The plastic in their sideplates, sheaves and balls makes them 30% lighter, 60% stronger and generally less expensive than equivalent conventional blocks.
The 75mmCarbo Blocks are the only all-plastic blocks with a safe working load over 1,200lb. Because of their large-diameter sheaves and fitted ball races, they release easily under load and keep weight to a minimum. Perfect for mainsheet systems on racing boats and cruisers looking for better performance at a reasonable price. The 75mmsingle block weighs in at a remarkable 6.9oz. including the shackle, and the double and triple blocks aren’t much more, giving an extremely high strength-to-weight ratio.