The XHGPZB450 is a 450ml (15oz) double-walled borosilicate glass mug designed for serving both hot and cold beverages. Hand-blown from premium borosilicate glass, this mug can withstand temperature shocks from -20°C to 150°C without breaking, keeping drinks warm while maintaining a cool touch. Weighing only 155 grams, it features an ergonomic, one-piece handle, making it ideal for specialty coffee shops, tea brands, and retail gift collections. Sparkle Glass offers factory-direct pricing with a minimum order quantity of only 5000 pieces, and can customize silicone sealing rings or lids, as well as OEM packaging.