12 robust HOURGLASS for learning - playing - brushing your teeth, tidying up or having fun Assorted in 6 colors (blue, yellow, pink, green, white and red sand) Are ideal as gifts or gifts for birthdays. with different running times for timekeeping, ideal for sports, leisure, household, kitchen, brushing teeth and much more. Always in time! The following times can be timed: 30 seconds, 1 minute, 2 minutes, 3 minutes, 5 minutes, 10 minutes. The watches run perfectly. 10% time deviation is possible. durable glass tube and sand in different colors. Size: approx. 8.5 2.5 cm. Suitable for kindergarten and school to learn clock and time. These are great tools for introducing 3-5 year olds to the concept of time. Great for any timed task with young learners like homework, tidying up or just playing games. Like eduplay. When brushing teeth for kids, we make brushing teeth child's play. this is an hourglass made for games. Slight deviations in the measured time are therefore possible.