These lightweight, nesting champagne flutes go anywhere with their unique stem design that unscrews and allows the bases to be compactly snapped into the flutes for storage. � Super lightweight and nearly indestructible, the BPA-free copolyester material will serve you for many more celebratory summits to come. � Glasses unscrew at the midpoint of the stems so that the bases can be snapped into the flutes for easy packing and storage. � Material: Copolyester � Capacity: 177 ml each � Dimensions: 13 cm x 6.1 cm x 6.1 cm each