The electro-galvanized steel Anchor Lift & Lock Bow Roller makes it easier to set and retrieve your anchor. Designed for one-handed use by simply lifting up on the line to release the locking system. Then feed the rope until desired anchor depth is achieved. Lower the line down and the weight of the anchor will activate the braking mechanism, locking the line in place. Handles line up to 3/8" diameter. Installs with four #10 RH fasteners (not included). Line 3/8" dia. Max A 6-13/16" B 13/16" C 1-7/8" Fastener #10 RH