4" Harken 40MM Carbo Air Double Swivel Block with Becket

Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Harken is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.Harken durable blockExpertly crafted from premium materialsDesigned to match rigorous quality standardsCorrosion resistant and durableMade from durable materials for long life useDimensions: 1"H x 2"W x 4"DMaterial(s): metal