Ballotini Glass Sand Timer - Set Includes 1, 3 and 5 Min. Timer offers a thoughtfully designed, durable resource for hands-on learning. This wonderful 3-piece set in our new range of Sand Timers beautifully captures the concept of time in a way that children truly can appreciate. The timers are designed to run for different Time Intervals and the beautifully coloured sand adds a fantastic visual detail to the Timers._x000D__x000D_Size: Height: 16cm Width: 6.5cm_x000D__x000D_Colour:_x000D__x000D_Casing: Yellow_x000D__x000D_Sand: Yellow, Orange and blue._x000D__x000D_Power Source: N/A_x000D__x000D_Usage: Sensory Play, Education, Fun_x000D__x000D_Material: Glass protected by solid plastic._x000D__x000D_Sand timers are aesthetically pleasing ornaments, rather than accurate timepieces - please don't rely on this product for tasks requiring exact timing._x000D__x000D_* This is not a toy and is for visual entertainment only.