100 Tamper Evident Red Labels shows "OPEN" "VOID" when Tampered: 2" X 0.8" (50mm X 20mm) High Quality gloss finish red polyester tamper evident labels 2" X 0.8" If removed "VOID" "OPEN" Pattern will remain appear on the product and on the label. Once removed it cannot be reapplied without the evidence of tampering. Once the labels are removed cannot be reapplied without the proof of tampered. For best result allow at least 5 min curing time. 100% Quality Guarantee for Unbeatable Price!!