Aired from 1974 - 1983 during the big game, our iconic Marksman commercial continues to be well-known and remembered for its demonstration of superior strength, performance and durability – the foundation of all Master Lock products. Learn more about our history at: https://www.masterlock.com/about-us | Master Lock | Facebook

Master Lock’s iconic Marksman commercial demonstrated superior strength, performance and durability – the foundation of all Master Lock products. Aired from 1974 - 1983, this commercial is still well-known and remembered to this very day. #MasterLock #ForEverythingWorthProtecting #MasterLock100Years | Master Lock

Small business access control can now be achieved virtually (and at a much lower cost). The Master Lock 6440ENT Door Controller means there's no keys to lose, no combinations to forget, and no unauthorized key duplication. Learn more at: https://www.masterlock.com/products/product/6440ENT #MasterLock #MasterLockVault #WirelessLocks #BluetoothLocks | Master Lock | Facebook

How to Change the Code on a Lock Box in Only 3 Steps?

Master Lock 5401 Code Change Instructions | Securikey