S15 BB Block,Single Loop Top Spares & Maintenance Aluminum frame to protect against

Aluminum frame to protect against corrosion

Requires (4) 3/8" (10mm) Flat Head Fasteners

Designed for cockpit-mounted cruising installations and similar setups

Bail Height 1-1/16" (27 mm)

S15 BB Block,Single Loop Top Spares & Maintenance Aluminum frame to protect againstThe Ronstan Series 15 mm Ball Bearing Utility Block with Loop Head (RF15100) is the smallest and lightest ball bearing block available. It has precision moded acetal sheave running on stainless steel ball bearings that provide high performance & low friction. Single loop head blocks include an O ring to separate running line from head lashing or fixing. . Features: Ronstan Series 15 blocks utilize stainless steel cheeks and precision molded Acetal