Harken 40mm Carbo Air Double Swivel Block [2638] Brand_Master Fender Covers Companions to the popular Harken

Companions to the popular Harken Black Magic block line

Embark upon your next voyage with the most technologically advanced antenna we've ever created

A specially engineered lubricated gasket is used in conjunction with a knife edge for a leak tested seal

the shorter taper runs through the cockpit sole blocks

Painted & Enamel finishes

Harken 40mm Carbo Air Double Swivel Block [2638] Brand_Master Fender Covers Companions to the popular Harken40mm Carbo Air Double Swivel Block Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave (mm)40 mm Sheave (in)1 9 16 in Maximum line (mm)10 mm Maximum line (in)3 8 in Maximum working load (kg)440 kg Maximum working load (lb)970 lb Quick Guide (pdf)