The most popular and versatile Time Timer gives you the power of a visual timer in a light weight, accessible size.On your desk at the office or at home, the famous Time Timer disappearing red disk will help you:-Increase productivity by breaking projects into manageable segments-Keep meetings and appointments on schedule-Manage the stress of traveling by showing " how much longer" -Reduce conflicts over whose turn it is with computers and games-Trade chaos for order in family and household routines8-inch Time Timer features:-Patented red disk that disappears as time elapses-No ticking, no distractions, no setup required-Optional audible signal when time is up-Free-standing or wall-mounted options-One AA battery is required for operation (not included).