HOURGLASS$ 259.00 - $ 859.00Sand7352/043/711Add to cartAddDescriptionGlass hourglass. Available in several sizes. The duration of each is: - Small 5 min- Medium 10 min- Large 1h- XXL 2hComposition, care & originShipping, Exchanges and ReturnsComposition: 90% borosilicate, 10% sand