KryptoLok Series 2 LS bicycle U-Lock from Kryptonite with two keys and one "I" key, and EZ Mount Transportation mount * Lock measures four 11.5 inches long by four inches wide for flexible locking * 13-millimeter hardened performance steel shackle and patented deadbolt locking mechanism; pick and drill resistant disc-style cylinder * Moderate-security ideal for suburban areas and quick stop lock up in urban areas * Includes $1,500 anti-theft protection; Lifetime warranty protects against defects