Acme security label and bags are a tamper-evident sticker seals to ensure packages or item status while in transit. Security labels or bags are commonly used in evidence collection, high-value packages in transit or security envelops. Acme security label sticker and bags will show an ''OPEN/VOID'' hidden message where there are any unauthorized attempts to break the seal. Acme security sticker seal is available for customization on logo, bar code, numbering and sizes.