XHGPZB450 is a 450ml (15oz) double-walled borosilicate glass mug designed for both hot and cold beverages. Hand-blown from lead-free high-borosilicate glass, it withstands temperature swings from −20°C to 150°C while keeping the outer wall cool to the touch. At only 155g, the one-piece handle sits comfortably in hand. FDA / LFGB / ISO9001 certified. Xinghuo Glass supplies direct factory wholesale with OEM customization (custom lids, silicone seals, logo decals, gift box packaging) from 5,000 pieces. Updated: 2026-10-13