Elizabeth Richards - Magnetic Countdown Classroom Timer A perfect classroom essential to help with time management during tests or any other time sensitive activities! Features: This 60 minute magnetic timer also has a built in stand for placing on a desk or can easily be attached to your magnetic whiteboard, file cabinet, or other metal surface in your classroom. The timer shows a red disk which indicates the time remaining and includes a ringing bell (3 different volumes to choose from) to clearly define when time has ended. Size: - 18cm diameter Requires 2 x AA batteries, not included. Not suitable for children under three years old due to small parts, keep out of their reach.