Hourglass timer in different colors.30 minutes for reading, cooking and baking, brushing teeth, games and sports time. Our timer is made of durable ABS+Glass hourglass, which makes the hourglass timer not easy to be damaged and lasts longer, the hourglass timer is a very effective visual cue that helps to improve concentration and time management. The timer can be used for cooking, games, classroom, kids learning, exercise. It is a perfect gift for kids and friends. This 30 minutes sand timer size: 6.8*12.5 cm, the sand timer is made of transparent thick wall for easy identification, each timer has a different color of sand. Each timer may have 10% time deviation, not a complete chronometer.
