Estilo Glass Water Bottles 18 oz, Stainless Steel Cap - Case of 6 Value pack - 6 Glass reusable bottles with stainless steel cup Made of Ultra clear soda Lime Glass, which is known as a kind of special Environmental and healthy Glass material. Low expansion RATE, high temperature resistance, high strength and hardness, high transmittance and high chemical stability The cap is made of high quality stainless steel, and seals are made of food grade silicone, safe and Environmental Easy to wash: the Glass is super smooth, which is very easy to wash just by clear water Capacity: 18 oz. Dimensions: 9 inch high by 2.5 inch diameter. Dishwasher safe