Large sand timers with moulded end caps and thick surrounding walls.
For easy identification each timer is colour coded.
Perfect for use in games and timing experiments.
Each colour represents a different timer.
- Yellow-3 minutes
- Blue-5 minutes
- Green-10 minutes.
Size 16cm x 7cm.
The Blue-5 minute timer is also available as a Jumbo Sand timer - measuring 30cm x 15cm.