HARKEN 57 mm Carbo Fiddle Block - Swivel, Becket, 2622 Block Size_57 mm For sails up to 715

For sails up to 715 sq

Used extensively for sheet blocks on small- to mid-sized keelboats

and Aluminum cheeks and Delrin (tm) ball bearing sheaves (506 series)

spinnaker controls

Ronstan's all-purpose fiddle blocks are ideal for mainsheet

HARKEN 57 mm Carbo Fiddle Block - Swivel, Becket, 2622 Block Size_57 mm For sails up to 715The Harken 57mm fiddle Block with Becket is a good choice for 3: 1 and 4: 1 tackles on dinghy vangs and mainsheets. Low friction Carbo AirBlocks are lightweight, strong, reliable, and economical. Consistently 30% lighter and 60% stronger than equivalent Classic blocks. The sideplates are UV stabilized, high strength resin and designed for small diameter lines favored by racers. Good for jib and mainsheet systems on high performance dinghies, and for