Discover the exquisite blend of beauty and functionality Copper Tumbler from unique collection "One of A Kind", showcasing a mastery of copper works. Each tumbler is meticulously crafted by artisans, ensuring a unique piece that stands out in any collection. Designed by Mert Onur Chased & Engraved by Ertuğrul Durmaz Metal Spinning by İbrahim Aydın Polished by Yücel Gür Silver Coated by Doğan Kalemköy / Balık Coating Logo Stamping by MODeditions Team Box Production by Wooden Istanbul Serigraphy by Hasan Özkan Suitable for both hot and cold beverages, this copper glass elevates your drinking experience while offering the health benefits associated with copper and silver. Celebrate special moments with this ideal copper anniversary gift, reflecting thoughtfulness and luxury. Material Thickness : 1. 2 MM Coated with 999 Sterling Silver - 33 microns Care Instructions Using Copperware Or Silverware: Copper and silver are known to be very reactive, the surfaces can tarnish quickly and become a darker color. The natural oil in our hands and the droplets of liquids left unwiped can accelerate the oxidation on the surfaces. Therefore we recommend regular use and immediate cleaning in order to maintain the shine of your products. While using you are polishing the surfaces with your hands, and if you do not air-dry your products you will experience less watermarks in your products. Avoid High-Heat: Drinking hot liquids do not cause harm, but exposing the products to open flame will tarnish and burn the surface. A Simple Paste You Can Make At Home : Prepare an equal mixture of white vinegar and water in a standard water cup (250 ml) and add 1 tablespoon of table salt. Mix thoroughly. Immerse a microfiber cloth into the vinegar solution, ensuring it's soaked but not dripping. Delicately rub the cloth onto the tarnished sections of the copper item, using gentle pressure and moving in circular motions. Rinse and dry the cups using a dry cloth. General Cleaning : Use mild dish soap and warm water to clean the cup, rub with a soft cloth or a sponge. Avoid abrasive materials, as they can scratch the copper and the silver plating. Please do not use harsh chemicals or abrasive cleaners, avoid bleach, vinegar, or any cleaners containing ammonia. Avoid Dishwasher Use: The detergent, the pressure of the water and the metal racks inside the dishwasher can damage metal products. Also since the product will mostly dry inside the dishwasher, watermarks will appear. We are not recommending you to wash your copper and silver products in the dishwasher. Copper 80%, Sterling Silver 20%