This 90-minute hourglass features unique crystal glass with a narrow middle and no side columns. The clear design showcases the smooth flow of midnight blue sand, making it a stylish and functional timepiece. Details: Clear with blue sand 6.25" x 6.25" x 15" 2.75 lb. Elegant hourglass with midnight blue sand, 90-minute timer Hand-blown borosilicate glass for superior durability Glass transparency reveals clear sand flow Easy to clean Made of 100% glass Multifunctional Use: perfect for desk decoration, kitchen timing, or office assistance