All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.

Curved base adapter available to facilitate mounting on masts or booms.

Sheave diameter: 40mm (1-9/16"). See Technical Specs for more information.