Anchorlift USA 90103 Self-Launching Hinged Bow Roller Anchorlift Self Launching, Pivoting Head Bow Roller for Boats 20ft. to 85ft. High quality Anchorlift 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. Length 590mm - 22.8" Width 76mm - 3" Anchor Size 20kg - 44lbs