Time Timer® Plus$58.99
To set the Time Timer, move the red disk counter clockwise to the desired time interval. The disk diminishes silently as time elapses until no red is visible on the timer face. Use as a visual depiction only, or add sound to signal the end of a time segment. Can be free standing or wall mounted. A great visual tool for keeping classroom activities like reading, cleanup and homework on time and on task. Features protective lens, volume control and carry handle. 7"W x 8 3/4"H x 3 1/4"D.