The Time Timer Original 12" is perfect for small or large group use. The Original 12" has increased functionality, magnets and includes a dry erase activity card and free Time Timer desktop download. Patented red disk that disappears as time elapses. No ticking, no distractions, no setup required. Optional audible signal when time is up. 60 minutes. Battery-operated (1 x AA, not included). Sold by each. Black.