Description: - 3Pcs/Set hourglass timers - 3 minutes, 5 minutes and 7 minutes, each with a different bright color of sand, easy to distinguish which timer to use. - Shock Resistant Hourly Sand Timer - Made of durable, high quality borosilicate glass and sand, not easy to break. - Using these sandbox timers is more enjoyable and less distracting than watching your cell phone often, and helps you stay focused and efficient for a long time. - Good Time Management Tool - Help your child to do things more effectively and develop a strong sense of time. - Perfect for cooking, classroom use, game time, exercise timer (yoga or psychological training). Also be used as home office decoration. Good gifts for children and friends. Specification: - Material: Glass and Wood - Size: approx 9x3x9cm/ 3.54x1.18x3.54inch Package Includes: 1 Set Sandglass Timer Note: Due to the manual measurement, please allow 1-2mm differences in size. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.