Generic Portable Glass Mugs for Coffee, Tea, Water-by Sistel Retail Packing Made of ultra clear borosilicate glass (not plastic), heat-resistant, no worry of BPA or plastic taste Nylon cover makes this mug easy to hold; fits most standard car cup holders Capacity:550ml(18.5 Oz), store for many items ,not only water , but beans and candys. This high quality glass is perfect to use in the home, office or car and fits most cars' cup holder. Hand washing recommended; lid is dishwasher safe