Simple, strong and safe, all these hooks employ the famous Wichard torsion spring. Carbine hooks are available in 3 shapes, 4 sizes and can be used in many applications. Sail snaps can be operated with one hand, so the other is free to hold onto the boat. Useful for racing or cruising, they have sailed around the world in less than 80 days. Length 4" A 1/2" B 5/8" Funct. 3085lb BL 3300lb.