Protect your product from manipulation and tampering with tampered evidence VOID sticker. When the sticker is peeled or removed from your product, the security hidden message "VOID" will appear indicating that the sticker and product have been tampered with. This sticker is widely used on electronic machinery, gadgets, and equipment as Warranty Claim sticker. The sticker leaves a clear indication if there is unauthorized alteration made. Serial number printing and custom design printing onto the sticker is available.