Swivl-Eze 10108 Lock N Stow for Outboards Under 200HP Features Locks the outboard motor in forward positon while trailering, greatly reducing the effects of road shock Does not tie engines lower-unit to trailer, eliminating excessive pressure on hydraulic seals and unsightly scuff marks Small compact mount can be easily stored in just about any boat compartment Constructed of black powder-coated steel with stainless steel pins Made in the USA Fits Mercury engines 135 - 175 OptimaxOptimax ProXS