Metal: ABS + metal, weight 30g.
USB lithium battery charging, with screen and 3 small buttons to set hours or minutes, the maximum setting time is 99 hours and 59 minutes.
USB charging lasts for 120 hours.
When the lock is locked, it will not open and it is impossible to break it by hand. Please set the time reasonably.
The padlock combination is lightweight and suitable for airport and travel safety. You can lock your important items at any time to protect your privacy.