Ronstan Series 40mm Blocks
RONSTAN All Purpose Blocks - Size 40 - Overview
Ronstan Series 40 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.