AnchorLift Self-Launching Bow Roller The AnchorLift Self-Launching Bow Roller is a high quality, universal self-launching roller for boats ranging from 26 feet to 100 feet. This universal self-launching bow roller is designed for easy mounting on most bows. Features a low-profile design and is equipped with high-quality dual rollers. Constructed of solid solid 316L Stainless Steel. Available in multiple sizes, the AnchorLift Bow Roller is best suited for use with the AnchorLift XR, AnchorLift TP