【High Security & Resettable】 Smart wind-up lock, 4-digit and resettable, can set 1,0000 different combination codes, the factory default password is 0000. 1. Align the initial password with the position marked by the arrow2. Turn the lock as shown in the picture3. Turn the word wheel to set the desired password. 4. Return the lock to the starting position, the password has been set successfully. 【Sturdy Lock】 This bike cable is made of strong steel cable, the PVC protective coating prevents scratches and lasts longer. With high-strength zinc alloy lock head, sturdy, durable and rust-proof. 【Free Combination】 2 bike locks are included, meet all your requirements. Each bicycle lock can be used separately or combined with each other, you can freely combine them into a larger lock which is endless and widely used. 【Easy to Carry】 The bicycle security lock has a mini design, is lightweight, can be carried on the back seat, in the frame or in a bag, etc. It is stylish and beautiful, and