USAGE-Water stored overnight in copper Utensil is essential for hemoglobin synthesis, bone strength and immunity building. Design- Copper Hammered Glass , Material:- Copper, Height:-3.8'' Inch, Width:- 2.4'' Inch, Volume : 200 ML Copper water Glasses are constructed from high gauge pure copper. Designed to offer many years of use and enjoyment. Unmatched handcrafted quality