Material: The luggage strap is made of high-quality polypropylene PP material, which is wear-resistant, durable, and sturdy. You can easily adjust the length of the luggage strap.Adjustable luggage strap: The luggage strap is adjustable. Belt length 113 centimeters; Belt width: 6 centimeters; General luggage strap, suitable for luggage boxes between 20 and 34 inches.Easy to use: Each luggage strap is equipped with a password lock for easy security control. Set a 3-digit number as your personal password to unlock without the need for a key, which is very convenient and secure.Instructions for use: The factory password for password locks is 0-0-0. Place the encryption board in the 0-0-0 position and align it with the baseline. Press the large button on the side to unlock. After pressing a small button with a pointed tool, rotate the password wheel to set a new password. Release the small button, now you can set a new password