Ronstan Series 40 BB Double Block w/ Swivel Head & Becket Ronstan Series 32 An excellent choice for situations

An excellent choice for situations where a fixed foot block just won't do

in particular the loads generated by code Zero headsails

Staying connected to the boat is undoubtedly safer than being in the water and use of a safety line is actively encouraged

Men / Unisex

Replacement parts always readily available

Ronstan Series 40 BB Double Block w/ Swivel Head & Becket Ronstan Series 32 An excellent choice for situationsProduct Description Ronstan Series 40 BB Double Block w Swivel Head & Becket Sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2 stage ball bearing system provides consistent performance over the full load range. Features: Low friction Acetal or Torlon bearing system Lightweight Cheek cut outs for easy bearing maintenance Specifications: Sheave 1 9 16 in. (40mm) Max. Rope 3 8 in. (10mm) Max. Cable in (mm)