Unique swivel extension that is designed to be driven with a 1/4 inch ratchet or driver, Phillips screwdriver or 14mm wrench and works with 3/8 inch drive sockets Unique 2-step extension – Swivel or fixed Extension is 3 inch(75mm) long Swivel feature allows extension to be used at up to 15 degree angle Ideal for use with spark plug sockets to access hard to reach spark plugs Durable chrome finish Perfect for tool pack and toolbox alike