This 4-digit code coils the bicycle lock, which is easy to set your own personalized code. Automatic winding, easy to store.Product description 1. The specially designed automatic curling lock tube can be fixed on the bicycle axle, which is very convenient to carry when riding. 2. The keyhole has fine workmanship, high strength and durability, and it is not easy to deform under high temperature and high pressure. 3. The lock body is made of PVC material, which feels comfortable and prevents scratches on the frame.Password setting: 1. Look for the raised three-dimensional triangle on the front, that is, the initial password of the red bit in the picture is 00000, and it can be unlocked by standing it. 2. Rotate the lock cylinder toward the tendon, and align the password you want to set according to the position indicated in the first step. 2. Rotate the lock core to reset (don't move it when resetting, 1 password wheel) setting is complete, and the new password can be used.Product attribute Material: zinc alloy+PVC+ABS Style: modern and simple Scope of application: bicycles, electric vehicles, trailers Color: black, rose red, blue, yellowWarm reminder 1. Please remember that due to the lighting effects, the monitor's brightness / contrast settings / etc's, there will be some slight differences in the color of the pictures and the actual items. Measured by hand, deviations of 1-2 cm are possible. 2. Please leave us a message if you have any questions. We will respond and offer you our best service.