Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head Boat Etchells with a resilient and super-comfortable

with a resilient and super-comfortable silicon band

Guarded Rocker Switch (Up/Down)

making it ideal for use on high-tech dinghies

Style - Wearable

hardcoat-anodized aluminum sheave

Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head Boat Etchells with a resilient and super-comfortableSeries 55 Ball Bearing Orbit Block Single Becket Swivel Head Lightweight Kilogram for kilogram of working load, BB and RT Orbit Blocks are the world's lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimises the mass of the inactive return race and hub. Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through