15/30/45/60 Min Hourglass Timer Time Management Tool Creative Personality Glass Hourglass Ornament Specifications: Sand Crystal is simple and vintage design as a gift for friends, New Year, Holiday gift. Hourglass was first used as a timing tool, but now it is not only a fashionable decoration for the family, but also a toy for kids during leisure time and study, it can show your childs patience and stickiness. Meanwhile, it can be used as a mask or as a timer. Item Name: Sand Glass Material: Borosilicate Glass Timer: 15/30/45/60 Minutes Features: 15/30/45/60 Minutes, Home Decoration, Playground Size: 10.1cm x 20.3cm / 3.98" x 7.99"(approx.) Chip 1. Hourglass error is about 10 Percent, this is normal phenomenon, and it exceeds the production standards of the hourglass industry. in the USA. 2. It is normal for sand to hang on the wall or jam in the sand. Flick hourglass or place under the sun for ventilation. 3. Hourglass size is measured manually. Please note that there may be a 0.4 - 0.8 inch (Package Included: 1 x Sand Glass