New but out of the package. The Kryptonite Key Chain Lock is a large, durable lock designed for high security. Made of brass, metal, and steel, this chain lock has a thickness of 8mm and a length of 3 feet. It features a keyed lock mechanism, a security rating of Eurograde 4, and is designed to be rust-free, portable, waterproof, and weather-resistant. Made in the United States, this chain lock is a reliable choice for protecting your bike, motorcycle, or scooter from theft.