Pick up and install the Facnor Halyard Swivel for your Facnor furler, which has a smooth rotation even under high loads. This product features the bearing box like the drum. Facnor's Halyard swivels helps in allowing boaters to get maximum luff in the sails. Available for Racing Ranges (RX) and Cruising Ranges (LS and LX), Facnor's Halyard Swivels are both durable and reliable. If you need any assistance selecting the appropriate Facnor Halyard Swivel for your furler please contact us at Mauri Pro Sailing. Our crew is ready to help.