Universal home button sticker for fingerprint identification. Made from copper and polymer to preserve a natural touch feeling while supporting reliable home key fingerprint recognition. Key benefits Maintains fingerprint recognition: designed to keep the recognition rate from decreasing with long term use. Protects the home button surface: helps prevent sweat and spots from interfering with fingerprint scans. Preserves tactile response: copper and polymer construction retains a responsive touch feel for everyday use. Improves recognition consistency: helps maintain correct recognition rates for fingerprint identification. Product attributes Color: as shown Size: 1.04 x 1.04 x 0.04 cm Material: copper and polymer Function: sticker for home key fingerprint recognition on devices with a physical home button Compatibility Intended for mobile devices that use a physical home button with fingerprint identification. Works as a universal sticker for such home keys. Practical use scenarios Daily protection: apply the sticker to a frequently used phone to reduce false readings caused by sweat and surface spots. Active lifestyle: use during exercise or outdoor activities to help keep the home button performing reliably when hands become humid. Device maintenance: add to older devices with worn or slightly scratched home buttons to help maintain consistent fingerprint recognition. Notes Designed as a home button sticker to support fingerprint identification without changing the button feel.