This Attwood Lock N' Stow™ securely locks an outboard motor in a forward position during trailering, greatly reducing the risk of road shock damaging the engine. This innovative device doesn't tie the engine's lower unit to the trailer as some devices do, so it eliminates scuff marks and any possible excessive pressure on hydraulic seals. It features steel construction and a black powder-coated finish. The pins are stainless steel. This compact mount can be stored easily in nearly any boat compartment. This lock fits Mercury 200 OpitMax, 255 OptiMax, 225-HP EFI, and 250-HP EFI engines. Attwood Corporation has been an award-winning leader in engineering, testing, and manufacturing the highest quality marine products for over 150 years. We deliver safe and reliable lighting, fuel systems, water systems, seating & pedestals, swim ladders, custom upholstery, and general marine accessories that are easy to install and meet regulatory compliance.