1.Highquality materials: hourglass set for children. Made of highquality and durable materials, nontoxic sand and protective case. Unbreakable and very to use. In addition, these timers are waterproof and are therefore perfect for use as a timer. It will not be damaged under normal use. It is also a great decoration for your home. You can put it on the table, very elegant! 2.Good FunctionThese hourglass hourglass are designed for daily use and not a device for precise time keeping, so the time may be slightly different. Time and size may vary by 6% as the speed of sand is affected by temperature and humidity. (Please allow a little colour difference due to monitor and light brightness. The colour is subject to the actual product.) 3.Time Management Props: Use our home timer as a signal to monitor different times, such as playing, bathing or sleeping, perfect for kindergarten and school to learn clock and time. They are a great tool to help threeyearolds learn the concept of time. Sand timer. They can also be a beautiful decoration for your home and office. 4.Use: Valentine's Day gift, birthday gift, kitchen cooking, game or practice time keeping, wedding gift, bedroom or office or desk, crafts, home decoration, personal collection, classroom, table decoration, restaurant, living room at home, Christmas and Year parties, coffee table, shelf, the sand flows slowly, allowing you to enjoy precious time and memories.