Single lever / dual action control to operate both throttle and gear. Suitable for any type of boat with outboard, inboard or I/O power plants. Enables easy and safe gearing by preventing accidental gear engagement unless engine is idling. Can be installed horizontally or virtically, on the starboard or port side of the boat. Pull-out handle disengages gear for warm-up. Optional 4-X12 safety switch prevents in-gear starting. Smooth design for use on sailboats. For use with all Ultraflex engine control cables except C22 or C4 cables. Ultraflex C5 and C16 cables requires 4-K35 connection kit. PRODUCT SPECIFICATION additional information Smooth design for use on sailboats. Positive lock in neutral model no# B85 material painted marine aluminium.