High Quality of Materials: Made By high borosilicate glass, hand-blown and high definition, classy and lightweight. Time Manager: This is a creative gadget that lets you value your time and is great for allocating your time to a productive life. Beautiful Decor and Valuable Gift: This transparent hourglass timer is perfect for a personal collectible, can also be used as a home and office decoration, and means the best gift for your friends and family. This is sure to surprise your loved ones.