Kryptonite New York Diamond Standard Lock26mm diamond coated double layered steel shackle Angle grinder resistant 5 years free ATPO Patent pending hardened double deadbolt design gives additional protection against twist and cut attacks Highest security Disc Style cylinder is pick and drill resistant Sliding dustcover to protect from dirt and debris 3 Stainless Steel keys Includes Flexframe U bracket providing convenient multi location u lock transport Key Safe Program Protective vinyl