The Motion Pro Plug Socket 57-8175 is a specialty tool designed for removing and installing spark plugs on various motorcycles, ATVs, and UTVs. With a metric measurement system and a drive size of 9.5mm (3/8"), this socket is durable and reliable for off-road, adventure touring, dual-sport, street, and V-Twin cruiser rides. It comes with a 90-day warranty, free shipping to the lower 48 states, and is a essential addition to any rider's tool collection. Made by Motion Pro, a trusted brand in the industry, this socket is a convenient and efficient solution for maintaining your vehicle's ignition system.