【Great Compatibility】:2991521 Hand Control Depth Collar designed for Minn Kota freshwater and saltwater motors, both transom mount motors and bow mount hand control motors. Also fitment for shafts that have a diameter of 1-1/8”. 【High Quality】Made of premium plastic and steel. Plastic provides a lightweight and durable design. Ensure wear and corrosion resistance, withstanding rigors of fishing. Stainless steel ensures structural support and stability, firmly attached the collar to trolling motor. 【Reliable Performance】Allow user to regulate the depth of trolling motor on the front of boat. Finding suitable depth, lock the collar in tight to keep motor right. It does not slip or allow motor to slide down the shaft. Enhance performance and functionality of trolling motors. 【Precise Control】Allow anglers to adjust the operating depth of trolling motors. By modifying collar's placement, achieve precise depth adjustments. Keep flexible to fine-tune the motor's depth, effectively target fish in changing fishing scenarios. 【Unique Feature】Equipped with a reliable locking mechanism. Prevent unintentional depth changes caused by boat vibrations, water disturbances, or accidental bumps, guaranteeing stability of motor. 2991521 Hand Control Depth Collar designed for Minn Kota freshwater and saltwater motors, both transom mount motors and bow mount hand control motors. Also fitment for shafts that have a diameter of 1-1/8”