Schaefer Ball Bearing Fiddle Block Coast Guard Approved Life Jackets Main fabric: 100% Polyester -

Main fabric: 100% Polyester - 170 g/m

650 fill power

Aluminum Top Plate

Aft organizers for diverting lines from clutches and jammers

Schaefer Ball Bearing Fiddle Block Coast Guard Approved Life Jackets Main fabric: 100% Polyester -Product Description Schaefer Ball Bearing Fiddle Block Fiddle block with anodized aluminum cheeks and ball bearing sheaves. Works with 706 75 for a 4: 1 purchase. Delrin(tm) ball bearing sheaves feature a single top sheave and two in line sheaves to spread the load reducing friction and chafe. Swivel head design may be locked in place to avoid twist. Specifications: Upper Sheave Dia.: 2 3 8 in. (60 mm) Lower Sheaves Dia.: 1 13 16 in. (46 mm) Sheave