A great helper for time management: this hourglass is suitable for adults and children. It not only helps people who have no sense of time to tackle procrastination, but also improves children's concentration ability while promoting their understanding of time. HIGH QUALITY MATERIALS: Made of ABS plastic, high-quality borosilicate glass and sea sand, the hourglass is thin and lightweight, yet sturdy; the double layer construction of the tube walls also makes it even stronger and more durable. Easy to use: the walls of the hourglass have good transparency, so you can clearly see the falling sand and watch the passage of time. Strong adsorption: the hourglass comes with a suction cup that can be attached to a smooth surface, so you don't have to worry about losing your hand and dropping it on the floor. Wide range of uses: our 3-minute hourglass can be used for time keeping in different scenarios, e.g. B. for measuring playing time, countdowns when cooking, decorating furniture, for the time of brushing teeth of children, for team building activities, etc. In addition, it can also be used as a holiday gift for loved ones, friends, colleagues and children.