Very portable, perfect for travel, camping, beach, picnic. Cups are made of Aluminum which can better resist corrosion. Instead of fragile glass, our cup will not shatter or break if dropped on the floor. Not like plastic which tends to smell, these fairly light and handy cups will keep the drinks original flaor. The cup is polished inside and out, and the surface is smooth. Being made of high quality material, the cups are strong and sturdy. Our cups provides a choice of 8 oz to 20 oz capacity, both adults and children can easily hold the cup wall for use. The cup adopts modern design style and production process, which has advantages over traditional plastic drinking glasses and glass drinking glasses, suitable for any occasion, and is also very suitable for gift giving.