This timer is a whopping 17 inches by 17 inches so it can be seen in larger spaces. It is also eight timers in one with customizable durations and changeable timer faces, the MAX can countdown from five minutes to 24 hours. Use the red switch on the back of the timer to choose your volume settings (high, low, or no sound).Details:Black, white, red17" x 17"1 timer with 8 duration settings3 two sided timer faces (5/15 min, 30 min/1 hr, 2 hr/dry erase face)3 timer set markers and a bracket included