Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573] Marine Plumbing & Ventilation | Monitoring System Weight: 70g(2

Weight: 70g(2

and accurate speed from 1 to 50 knots

Material: Polished Brass

Cast 1-piece stainless steel swivel cup

Ronstan Series 25 Utility Block - Single - Swivel Shackle Head [RF573] Marine Plumbing & Ventilation | Monitoring System Weight: 70g(2Series 25 Utility Block Single Swivel Shackle Head Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters, etc