Time Timer Original 3 Inch; 60 Minute Visual Timer &ndash; Classroom Or Meeting Countdown Clock for Kids and Adults (Black) Original 60 minute visual timer. As time expires, the signature red-disk disappears in clockwise direction Ideal time management tool for individuals: classroom, office, home, and special needs No loud ticking. On/Off optional alert when time is up. Ideal for sound sensitive environments The original Time Timer 3 has a protective cover that flips open to serve as a desktop stand The timer is 3 inches wide by 3 inches tall and requires one AA battery (not included)