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