Material Metal Item dimensions L x W x H 8.5 x 8.5 x 2 centimetres Human interface input Touchscreen, Buttons About this item [Smart Touchscreen Timer]: The touchscreen timer make you set the time easily. Just set the alarm time by simply touching the screen. Easy to set and re-set. The timer will reset to 00:00 if Min and Sec are pressed simultaneously. [Count Up/Down Timer]: Counts up and down by minutes and seconds, maximun time ups to 99 minutes 59 seconds. Counts up function can be used as a stopwatch. Has a stop and memory function. Powered by 2 X AAA Batteries(not included) [Large LCD Screen Loud Alarm]: Large screen can make you read the big digits from a distance clearly and easily. The loud alarm sound can make you hear it from anyplace in your house and won't miss it [Magnet Back Retractable Stand to Place Timers]: You can place digital timers by retractable stand or Attached onto the metal surface such as refrigerator. [Widely-Used]: Perfect timer for homework, exercise, gym workout, cooking, sports, games and classroom timer activities. A real good life reminder for you. Perfect gift for children and friends