3-in-1 design: Sand timer set has a total of 3 hourglasses (1/3/5 minutes) combined together, which start at the same time and calculate different times. Material: Sand timer decoration is made of wood and glass material, which is harmless, heat-resistant, and practical. : Hourglass clock is a wonderful for parents, friends, beautiful decorations for home, office decoration, practical tools in daily life Application: The hourglass timer is suitable for cooking in the kitchen, making masks, playing games, reading or studying, exercising, sauna, brushing teeth, etc. Time management props: Hourglass clock can remind you of your study time, it can be used as kids timer toy, study timer, yoga exercise timer, etc.