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1Pcs Large Capacity Four -layer Canvas Pencil Case Portable Waterproof Password Lock Pencil Bag Kids Student Stationery Password lock analysis: The initial password is: 0001. Change the password setting :Pull the unlock button to the right, do not let go; then turn the password gear to change to the password you want, and then release the unlock button. Forgot the password, retrieve the password:Turn the numbers to find three small holes , and then turn each gear to the left twice, then pull the unlock button to the right to unlock successfully. Password lock pencil case Size: 21.5*9.5*6.5cm Features: portable code lock pen case Capacity: 4 layers separated Uses: pencil case/storage bag/cosmetic bag