The Abus Ivy Chain Lock is heavy duty, low impact protection. With 10mm thick, hardened steel chain links, it's solid protection against most hand tools. Granted, like most any lock, it's not impervious to power tools, but so long as you leave your bike in a high traffic setting, it will serve as a serious deterrent to all but the most emboldened thieves. To make sure there's no weak link, Abus employed a pick resistant barrel. But that strength doesn't come at the cost of usability the chain is covered with a mesh sleeve, which protects your bike's paint. This is one serious lock that's perfect for protecting your favorite ride. The Abus Ivy Chain Lock is available in one size and in the color Black.