Double-wall Thermo Glasses 8.5-ounce Tumber/DOF Glass, Set of 2 Freezer and microwave safe; Capacity: 250 ml (8.45 OZ); Dimensions: 3.25" Dia(w/o handle) x 3.5" H This beautiful mug combines simple elegance with high functionality and durability Two-layer construction keeps your drink hot and your hands cool Made of high quality, BPA-free, lightweight, thermal borosilicate clear glass Soft curving silhouette and double wall structure show off your beverage for a delightful "floating" effect