Medigy Teaching Sand Timer Clock Set 1 minute 3 minutes 5 10 15 30 for Kids Study Toothbrush with Gift Box

The sand clock set includes 1 minute 3 minutes 5 minutes 10 minutes 15 minutes 30 minutes 6pcs in all. Size(H*D): 3.7*1.6inch, suitable size, easy to hold for kids. Made of high quality glass and ABS cap, very robust material, it will not break falling to floor. Best gift for kids to learn a concept of time, and self-management for time. As the sand clock timer is not accurate clock, pls allow ±%5 difference. Any quality problem will accept refund or replacement.