Shackle, body and supporting elements made from temper hardened steel for cut and torsion resistance Key cylinder resists extreme picking attacks Automatic keyhole cover protects against dirt and corrosion SH 34 Bracket mounts easily to frames with 24-35mm diameter Two keys are supplied with the lock 12mm 4x9`/10x23cm STD BlkUPC/EAN/GTIN: 888571047736