Baoblaze Glass Clock Tea 3/5/7 Hourglass Kitchen Cooking Yoga Sauna

3Pcs/Set hourglass timers - 3 minutes, 5 minutes and 7 minutes, each with a different bright color of sand, easy to distinguish which timer to use. Shock Resistant Hourly Sand Timer - Made of durable, high quality borosilicate glass and non-toxic sand, not easy to break. Using these sandbox timers is more enjoyable and less distracting than watching your cell phone often, and helps you and efficient for a long time. Management Tool - Help your child to effectively and develop a strong sense of time. Perfect for cooking, classroom use, , exercise timer (yoga or psychological training). Also be used as home office decoration. Good gifts for children and friends.