Selden 45mm Ratchet Auto Single Block

Selden 45mm Ratchet block is for dinghy mainsheets and yacht spinnaker turning blocks etc.

Make it easier to advance your grip when hauling in the sheet. Also easier for the trimmer as load in the hand is reduced. The perfect combination of control and convenience.

The sheave automatically changes from free-turning to ratchet when the load increases. The switch-over point is set using an allen key to adjust a screw inside the sheave.