These pure copper cups are beautiful and functional! Eco-friendly replacement for plastic cups, these are great for use indoors or outside. Copper is naturally insulated and antimicrobial making it an excellent metal for a drinking cup! The cup will develop a gorgeous patina over time or you can choose to keep it bright and shiny by using lemon juice to polish. Minor imperfections and variations are to be expected due to the natural copper material and hand made nature. Sold individually. Recommended for use only with cold non-acidic drinks. Dimensions are 2.75 inches diameter and 3.5 inches high.