Harken Ratchamatic Double Swivel Carbo Block - 57mm Blue Sea Systems Sea-Dog Line 45° S/S Round

Sea-Dog Line 45° S/S Round Rail Base 1" Tube

Resists Damage From The Sun's UV Rays

Closed back design completely insulates power from the mounting surface

providing for maximum current flow while resisting corrosion from salt and moisture

Harken Ratchamatic Double Swivel Carbo Block - 57mm Blue Sea Systems Sea-Dog Line 45° S/S RoundThe Carbo Ratchamatic is a load sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light air modes is seamless. Use the 2634 with a 402 or 403 swivel arm for a versatile two speed mainsheet system.