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; red 1 minute, pink 2 minutes, yellow 3 minutes, blue 5 minutes and green 10 minutes. All of these timers measure 16cmH x 7cm diameter.

Also available is a Jumbo 5 Minute Sandtimer measuring 30cmH x 15cm diameter (item #65536).