Simple 1 second school timer which is very simple to use. Simply press start/stop button once to start counting, press start/stop button again to stop. To reset the timer to zero, press the reset button. Counting capacity up to 20 minutes. Times to whole seconds only. No distracting beeps. Designed for use by younger children. Ergonomically designed for smaller hands. VERY simple to use - Press Start/Stop button once to start counting, to stop counting press Start/Stop button again. To reset the timer to zero, press reset button. Safety wrist cord (will not fit over a child's head). Integral desk stand and clipboard clip. Anti-tamper battery fitment. Theft deterrent 'SCHOOL TIMER' printing on case. Battery S1154S included. Size: 55mm x 60mm.