Double locking device to be placed on a 25mm diameter stanchion.
The double furling line blocker allows you to temporarily stop the rolling/unrolling of the sail. This system is very intuitive and fast.
This block will allow you to use your Gennaker, FurlingS or Code in a safe way, especially if your furler is not equipped with a blocking ratchet.
It fits on a 25mm diameter stanchion.
This product is available in 30mm diameter on request.