Attention: Only mineral water (well water, tap water containing minerals) can be used. Filtered purified water is not acceptable! Specifications: Name:Hydrogen rich water cup Colour:silver,black,red,rose red,blue Material:High borosilicate Size:20.7*7cm/8.15*1.97inch Product Capacity:420ML Description: HIGH QUALITY MATERIAL: Our hydrogen rich water dispenser is made of high borosilicate glass, professional digital touch control LED display panel is touch sensitive and easy to use. Tips for use: To ensure optimum performance we recommend cleaning the hydrogen water generator once or twice before use. Please do not pour juice, milk, tea or other liquids into the alkaline water ioniser. Modified hydrogen: Our hydrogen water bottles use advanced technology to make the water molecules smaller so that they can be better absorbed by cell membranes. This helps boost metabolism, improves sleep quality, fights inflammation and promotes healthy skin in a natural way. Easy to use:Drinking hydrogen-containing water helps to lower blood lipids, improve sleep and purify the blood. With a large capacity of 420 ML, our product can meet the needs of an entire family. Great as a gift: Give the gift of health with our hydrogen-enriched water bottle. Long-term consumption of hydrogen water helps to reduce muscle soreness and physical fatigue after exercise, making it a great gift for active and health-conscious family and friends. package list: 1*Hydrogen rich water cup