With its laminated steel body, this Burg-Wächter padlock can withstand tampering and physical abuse to help keep doors, gates and other items safe and secure. When purchasing multiple locks, they're supplied keyed to differ so that each lock has its own key. Sold Secure approved premium solid hardened steel padlock with boron steel shackle. Double Locking Mechanism Hardened Steel Body Round Hardened Steel Shackle Suitable for Outdoor Use Double ball bearing locking Laminated steel body with ABS protective cover Hardened anti-drill plate Brass cylinder Keyed to differ so each lock has its own key Double Locking Mechanism Hardened Steel Body Round Hardened Steel Shackle Suitable for Outdoor Use Double ball bearing locking Laminated steel body with ABS protective cover Hardened anti-drill plate Brass cylinder Keyed to differ so each lock has its own key