Fashion Waterproof Wrist Watch Children Watch Boys Girls Digital Sport Watch (Purple) Japanese High quality movement with rubber band FunctionAlarm clock, Stopwatch, EL light, 12H/24H time, week, date. 3ATM water resistant (waterproof 30M). Please don't press button under water. Product Length: 8.66in, Case size: 1.38 * 1.38in, thickness : 0.59in. Suitable for wrist(perimeter): 5.12in to 7.09in Easy to set up. It is able to operate it by children own. Nice watch for elementary age kids.