SKAVIJ Pure Copper Stainless Steel Water Glass Handmade Double Wall Drinking Glass for Ayurveda Health Benefit capacity 11 Oz PURE COPPER WATER GLASSES- Constructed with no inside liner coating, our water glasses promote the anti bacterial health benefits associated with drinking from pure copper. Handmade embossed, double wall tumbler outside stainless steel and inside copper. IDEAL SIZE AND CAPACITY - Holds 11 OZ (325 ML) of your chosen beverage. Tumblers measures 3.5" in height by 2.8" diameter. Enjoy the chilling, flavor, health benefits of a pure copper drink ware. AYURVEDIC HEALTH BENEFITS - Storing water only for about three hours in a copper vessel can kill harmful bacteria. Pure copper has antimicrobial properties that help kill E-coli, influenza and other bacteria. HANDCRAFTED BY SKILLED ARTISANS - Our copper glasses are all hand crafted by skilled artisans from using time-tested, handmade, emboseed techniques that look just as beautiful on a table as they do your hand. Each copper glass is put through a multi-day process that includes 12 different steps to ensure each piece is impressively unique CLEANING AND CARING - Copper utensils tarnishes or darkens naturally over a period of time. The copper utensil requires cleaning from time to time. Use lemon juice or tamarind to rub the utensils. Leave it for few minutes and wash with water.