Features1Excellent Performance: The black area is the negative ion strengthening module to improve the negative ion concentration, healthy and safe, waterproof, more suitable for sports wear. 2Versatile Use: The anti static wrist strap is suitable for running, cycling, and jogging, during autumn and winter seasons as it serves as an effective anti static solution, preventing troublesome static shocks. 3Compact and Lightweight: Small size, lightweight, and portable, this anti static wristband is convenient to carry and wear, allowing for convenient use throughout the day. 4Adjustable Size: The anti static bracelet is designed to be adjustable, ensuring a snug and personalized fit for various wrist sizes, ensuring comfortable wearing experience. 5Premium Materials: Made from durable and skin friendly silicone, this negative ion bracelet is designed to be long lasting and comfortable to wear, ensuring durability and reliable performance.SpecificationItem Type: Anti Static Wrist StrapMaterial: SiliconeSize: Approx. 15 x 250mm/0.6 x 9.8in (Manual measurement has a certain error)Package List1 x Anti Static Wrist Strap