This glass tumbler is made of borosilicate glass, which is stronger and more durable than other glass. Not easy to stick to oil, dustproof and stain-proof, easy to clean. Capacity of 32 oz.Including 1pc glass cup, 1pc straw, 1pc anti-scald silicone sleeve, 1pc sealed lid and 4pcs water glass stickers (random style). If you are worried about the glass water bottle being broken, scratched, our silicone boot can protect your cup from bumps, scratches, and it will not make noise when placed on the table.The iced coffee cup lid is made of natural bamboo, which is environmentally friendly and healthy. Pick up the cup at any time and hold it comfortably in your hand, which will not affect your driving.