Features:1Our Anti-Static bracelet can release static, improve sleep quality, increases physical performance, reduces inflammation, is great for your and your family 2Easy to wear and remove. 3It is not only anti-static bracelet, but also a fashion ornaments. 4Easy to wear and remove, waterproof and washable. 5Suitable for for running, cycling, jogging, and other sports or any active activity where you need a power boost or increased energy.Material: SiliconeSize (approx.): for men: 20cm, inner diameter: 60MM for women: 18cm, inner diameter: 56mm10cm=100mm=3.94inchFunction: Eliminate static electricityPackage included:1 pcs Anti-Static Bracelet