The newest SnapFurl uses the snap over-the-headstay, interlocking extrusion system. It requires no headstay modifications. Schaefer quality engineering utilizes Torlon bearings, machined aluminum torque tube and drum plates. Perfect for boats from 24' to 28'. Furling and reefing capabilities. Aluminum drum and torque tube for strength. Torlon ball bearing races. Fits 5/32" - 7/32" wire. Extrusion Length - 38'. Interlocking, high grade Geon PVC extrusion. No headstay modifications.