Hinged, Pivoting Head Bow Roller for Boats 50ft. to 85ft.35"L x 4"W Up to 50kg/110lbsHigh quality universal self-launching rollers are designed for easy mounting on most bows. Made of solid AISI 316L Stainless Steel with a low profile design. Hinged for smoother self-launching operation. Best suitable with the Anchorlift CX, Bruce, Claw and Rocna style anchors.