1， Model: KD6319-M2， Size: 1.57in (Width) *3.15in (Height)3， Material: Zinc alloy and steel 4， Application scope: gate，travel bags，cabinet，mailbox，school， employee， athletic， storage lockers，cabinets and so on.5，Packing instructions：A packag has one lockOperating instructionThe lock original password is 0-0-0 numbers for unlocking. Change your personal password operation steps are as follows:1， Open the lock， Press the button at the bottom of lock and don't moving;2， Rotating the lock's number and set the numbers that you want， loosen the lock shackle， then your personal password has been set up;3，Please remember your new password， if you want to change the password again， please repeat the above operation.The following is the company introduction:Product quality is Catoon lock life，As the China's largest manufacturer of padlocks and portable security products， We have focused on design and manufacturing for thirty years.Many famous company in the world is our customers， including USA Master.Catoon lock continues to expand its products and services to better meet our customer's changing security requirements. Trust Catoon Lock for the innovative products， security， support and service you need.