APPLICATION -- Compatible with the following Outboard Engines: Mercury 200 HP OptiMax, Mercury 225 HP OptiMax, 255 OptiMax, Mercury 225 HP EFI, Mercury 250 HP EFI. FUNCTION -- Locking N’ Stow mounts into your outboard's trim holes and securely locks outboard motor in a forward position during high-speed trailering. Stabilizes motor and power trim protect transom. Reduce the risk of road shock that may damage the engine. BENEFITS -- It helps best support your transom and distributes the motor's weight to the rest of your boat, eliminating strain on your transom and trim rods. Special design not to tie the engine's lower unit to the trailer as some devices do, which eliminates ugly scuff marks and any possible excessive pressure on hydraulic seals. PREMIUM QUALITY -- This Locking N’ Stow is manufactured from quality steel with stainless steel locking pins. Black Powder-Coated to ensure Corrosion-Resistant. Using top of the line machining and measuring equipment to ensure each part is manufactured to OEM quality standards and specifications. EASY INSTALLATION -- Directly mounts into your outboard's trim holes and locks the outboard in the forward position without tying it to the trailer. Easy installation & Easy removal. SATISFACTION GUARANTEE -- If you are not satisfied with Camoo products, simply return it for a full-refund in 30 days. Guarantee with 12 months warranty. No worry about buying! 10107 Locking N’ Stow Transom Saver For Outboard Trailering, For Mercury 200 OpitMax, 225 HP OptiMax, 255 OptiMax, 225-HP EFI, 250-HP EFI Outboards Engines