A design piece of iconic and timeless value, this hourglass belongs to a refined series by R&D Blueside, comprised of sleek hourglasses of contemporary sophistication. An evergreen gift idea for a design lover and collector, it is handcrafted of clear borosilicate glass. Available in other shapes upon choice, please consult the Artemest catalog for details. The running time of the hourglass cannot be customized, as each piece is uniquely handcrafted.