Features: 1. The ZKSMNB hourglass teeth brushing children uses 100% new high-quality materials, with fine workmanship and not easy to break. 2. The cute appearance of the hourglass can be a cleaning companion for children. 3. The timer runs for 2 minutes and can be turned over to extend the usage time if necessary. 4. Hourglass 2 minutes increases children’s interest in brushing teeth and helps them develop good oral hygiene habits. Specifications: Colour: pink, blue, green. Material: plastic, glass, sand. Application: Timing Time: 2 minutes. Size: length 9.8 cm, width 2.3 cm / length 3.86 inches, width 0.91 inches. Weight: 22.4 g / 0.79 oz. Package includes: 1 x pink hourglass. 1 x blue hourglass. 1 x green hourglass. Note: 1. As this is not a professional timekeeper, there may be a time difference of about 10%. Thank you for your understanding. 2. Place it carefully, glass is fragile under gravity. We strive to develop products that meet customer needs. If you have any questions about using the product, please contact us in time. We will help you solve these in no time.?[Hourglass Instructions]: You will receive 3 pieces sand timer 2 minutes (green, blue, pink sand). Please shake the hourglass to loosen all the sand, and turn it on the table to start the clock. For non-precision meters, please allow 10% time deviation. Multiple uses: very suitable for children to brush teeth, can also be used when learning or playing to help children do things more efficiently and improve the time concept. A great gift for children and friends. ?[Safety Material]: Made of durable PVC, high-quality borosilicate glass, non-toxic sand, very safe for children. After testing, the base at both ends is not easy to pull out and not easy to break, which is an ideal timer for children to brush teeth. ?[Cleaning assistant]: Fun colour designs and cute tooth shapes as well as cartoon smileys make children fall in love with brushing their teeth. First recommendation of the dentist: the two-minute brushing time of hourglass teeth brushing children is designed in line with scientific findings and does not give children the feeling that the time is too long and they lose interest in brushing their teeth.