TimeTex Blue Sand Timer, 12 cm High, 6.5 Diameter, 15 Minutes, XL

6-cornered base/lid prevents rolling Sand inside is particularly easy to recognise, as it is dyed in lid colour. Protective plastic tube surrounds the glass watch body. Ideal for teaching the sense of time, brushing teeth, seminars/training/assesment centres or for board games. Available in a variety of colours and sizes.