At an impressive 160mm tall and indestructible design these are an excellent resource for the early years setting. With their giant proportions and clear colourful sand particles young children can time events, time themselves and set themselves time limits.
Red: 30 sec
Green: 1 min
Pink: 2 min
Yellow: 3 min
Blue: 5 min
Orange: 10 min
Purple: 15 min
Black: 30 min