The Negative Ion Rings are made of 100% BPA free, high quality grade silicone, infused with Si Bin and Black Tourmaline. These rings are designed to provide absolute comfort while optimizing your overall health.

Benefits:

• Increases stamina
• Enhances your body’s balance and center
• Enhances metabolism
• Enhances your body’s immune system
• Stabilizes your body’s electrical balance
• Improves concentration and focus
• Aids fatigue recovery
• Aids elimination of bacteria

Sizing:

Measurements refer to the inside diameter of the ring. If you are between sizes, size down to allow for minimal stretching with wear.

• Size 4: 18.4 mm
• Size 5: 15.6 mm
• Size 6: 16.45 mm
• Size 7: 17.3 mm
• Size 8: 18.2 mm
• Size 9: 19.0 mm
• Size 10: 19.8 mm
• Size 11: 20.6 mm
• Size 12: 21.4 mm
• Size 13: 22.2 mm

Charging Instructions:

• For optimal performance, recharge once every two weeks. To charge, place outside (during the day) for two hours.

Cleaning Instructions:

• Wash with soap and water when needed.

https://shop.solexnation.com/iridescenthealing/ProductDetails/512?type=2&countrycode=US