Multi Size Desktop Sand Timers
These desk top timers are ideal for concentration, time out, games and challenges.
Colour-coded for easy identification. Timers include: 30 second, 1, 2, 3 and 5 minutes.
Sizes range from: H7.5 to H13.5cm.
What they are supposed to be.
being used to help a child understand the waiting time
We think you might need our International Schools site
or continue to TTS UK