This is an anti-static wristband without grounding wire, and the operation is very simple.The current balance function of anions can balance positive and negative charges, enhance human body functions, and improve sub-health.It can automatically eliminate static electricity within the range of 10 to 50 cm according to the corresponding static electricity intensity.Made of organic silicon material, it is safe, non-toxic, harmless to the human body, and has a good anti-static effect.The length can be adjusted freely to suit anyone.Suitable for electricians, IC, PLCC and other workers.Item Name: Anti-Static WristbandMaterial: SiliconeFeatures: Anti-Static, Automatic Static Removal, Non-Toxic, Odorless, Harmless, Adjustable SizeSize: 24cm x 1.3cm/ 9.45" x 0.51" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Anti-Static Wristband1 x User Manual