Feature: FITMENT -- Fits for Mercruiser Alpha, Alpha 1, MR, Bravo's, OMC Cobra's and Volvo. No more hassles of slide hammer jaws not grabbing and busted knuckles. DURABLE & STURDY -- This set of tools is made of heavy-duty steel, which can withstand corrosion, rust and impact, and has a nice black Oxide finish. EASY TO USE --This tool set allows easy removal/installation of the Gimbal bearing and an Alignment tool to align the engine. This blind hole puller locks into the inner race of the bearing. To pull the bearing, just turn the end of the tool with a wrench. Eyebolt included so the Alignment tool can be hung up. .