This sand timer is made of , which can withstand use. Features the wood, glass and sand material, which has high durability, not easy to deform. Fine workmanship, practicality. Features -Color:Red -Material:Wood, glass, sand -Size:10.00X6.00X6.00cm/3.93X2.36X2.36in - Contains three time periods, blue for 3 minutes, green for 5 minutes, and yellow for 7 minutes. - The hourglass is very colorful and attractive for kids, the hourglass is made of wood, sand and glass, the thicker glass feels . - Hourglasses are big enough to hold in your hand and see how they work, they are very stable on a flat surface. - Unlike traditional timers, hourglasses don't make noise or " ," making them a for homes that need quiet and limited sensory stimulation. - Available time denominations, the hourglass has multiple uses: wash your hands, brush your teeth, a brief moment of screen time, how long until school and more. The divided into 3 minutes, 5 minutes, and 7 minutes. Package list: 1 x sand timer