Our new range of excellent value robust sand timers offer the same traditional visual demonstration of the passing of time, but with a new rounded design including a shatterproof plastic barrier to protect the sleek modernised glass bulb inside. Easy to understand for young children, ideal for use in timed games or activities and for timing experiments in maths or science. Colour coded to match the other sand timers in our TickiT range, with clearly marked times on the end caps. Includes information sheet. Size: 150 x 72mm dia. Single sand timer.