Excellent for ALL substrates:

cast iron keels and lead keels

Adjustable Elastic Waist and Ankle Cuffs

Made from UV stabilised nylon

dries soft

Harken 40mm Carbo Cheek Block 2644 SELDEN 60 Excellent for ALL substrates:Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. Sheave (mm) 40 mm Sheave (in) 1 9 16 in Length (mm) 70 mm Length (in) 2 3 4 in Weight (g) 34 g Weight (oz) 1. 2 oz Maximum line (mm) 10 mm Maximum line (in) 3 8 in Maximum working load (kg) 220 kg Maximum working load (lb) 485 lb Breaking load