Time locking container is made of metal, not easy to be broken or damaged. The volume of the phone lock box is 2.6L, the size 8.35 x 3.15 x 6.07 inches fits in school cabinet shelves, classroom, home, kitchen, bedroom, office, etc.Our phone lock box has 2 ways of power supply, which powered by 4 x AA batteries and external type-c port. Therefore, if the batteries run out of power during locking,It's a tool for those phone / gaming / electronics addicts, which can be used to keep tempting things locking up when your kids lack self-control. And our phone lock box is designed with child locking button, it prevents the kids from pressing the any buttons at random, which results in unnecessary locking.Along with bigger function buttons and responsive customized digital display on it, our time lock box helps us change habits such as quitting smoking, excessively drinking alcohol, overusing electronics, being addicted to or being distracted to cellphones at work, study or social activities, and it can be used as a medicine lock box too.Overusing the mobile phones, gaming pads, excessively smoking and drinking alcohol, having too many snacks, chocolates, or other junk foods will have influence on your life and health. The locking duration of time lock box is up to 365 daysColour:WhiteMaterial:plasticSize:212 x 80 x 154.2mmPackage Contents:1 x Timed Lock Box1 x USB Cable