11 reactions | Master Lock Back To School: Did you know that Master Lock’s first combination padlock, the 1500D, was launched in 1935? August is the start of #BackToSchool month and our classic best-seller 1500D continues to be a staple lock for school students all over the globe. Make sure your kids are school-ready this year with the 1500D available at: https://www.masterlock.com/personal-use/product/1500D #BacktoSchool #MasterLock #CombinationLocks | Master Lock | Facebook

29 comments | Step by step instructions on how to operate and reset your combination on the 1590D Precision Dial Combination Lock. | Master Lock | Facebook