The MAX40YL is ideal when combined with a TRIMAX cable or chain for securing motorcycles, bicycles, spare tires, ATVs, marine, trailers and much, much more.  Durable PVC sleeve covers chrome steel shackle to prevent marring and scratching Hardened solid steel lock prevents prying, sawing and hammer impacts Tough polymer outer skin absorbs hammer strikes and reduces marring and scratching Ideal for bicycles, motorcycles, spare tires, trailers, marine and more Type B key, which is an ultra secure wise wafer key. Lock core design provides the highest degree of protection against picking. Includes 2 keys. LIFETIME WARRANTY 1/2 inch hardened chrome plated solid steel shackle