GIFT SET: Give the Gift of Health - Copper Water Bottle 1 Litre with Leak Proof Cap & Set of 2 270 ml Copper Glasses/Tumblers - Perfect for Festive, Occasion, or Return Gifts, Comes in a Velvet Box. PROMOTE HEALTH: Copper is an Antioxidant that protects cells and slows aging. It is essential in producing melanin (pigmentation of eyes, hair, and skin) in the human body, supporting overall health. CARE INSTRUCTIONS: Regularly clean copper products to remove oxidation spots and pigmentation marks. These dark spots are a natural occurrence due to the oxidization process. CLEANING TIPS: Use a soft cloth to clean the bottle and do not scrub the outside, as it may damage the lacquer coating and printing. For thorough inside cleaning, squeeze lemon and salt into the bottle, let it sit for 2-3 minutes, shake, and rinse.