Ronstan's fiddle blocks are ideal for mainsheet, halyard, vang and spinnaker control applications on one-design classes and sport boats up to 33 feet as well as control line applications on larger boats.
Ball bearing blocks are highly efficient with low friction bearing systems for optimal sheeting and trimming performance
All purpose blocks have self-lubricating acetal sheaves and run on stainless steel races. They work well under dynamic and static loads
Impact modified, fiber reinforced and UV stabilized 1-3/16" Zytel cheeks
Acetal ball bearings
Adjustable cleat arms
Keyhole becket pins
Captive lock universal heads