1: Mainly applied for motorboats, fishing boats and other waterborne vehicles, to control accelerator and gearshifting of diesel or gasolene engines. 2: Adopt monolever to control both accelerator and gearshift. 3: Neutral safety switch as option to make start-in-gear protection. 4: Zinc alloy structured in whole, chrome plated, 304 stainless steel as part material. The whole body is waterproofing and antirust with innovative design. 5: Combined with 33C control cable, can be any length within 131 feet.