What should I notice?Surfaces must be clean, dust, debris, oil-free, and dry before application. This security sealing packing tape is used to seal bags or envelopes, boxes, and other containers or packages, traces of security print or pattern will be totally transferred to the application surface if these tapes are removed. This security sealing packing tape is used to seal bags or envelopes, boxes, and other containers or packages, traces of security print or pattern will be totally transferred to the application surface if these tapes are removed Tamper evident security tape is only one-time use. Application area: electronic equipment, appliance, books, boxes, wine, shipping, education, bank, finance, and more, it uses your goods from tampering during transport. Tamper Evident Security Seal Tape 40mm Security Tape | Tamper Evident Security Tapes How to use it? Press firmly into place when applying to ensure conditions are as warm as possible prior to application. The cleaner, dryer and warmer your installations are, the better the tape will perform. Length: 55 Yards/50m; Width: 9/16 Inch/15mm; 2 mil thickness; Color: Red; Material: Polyethylene Terephthalate; In the package of: 1pcs x Tamper Evident Tape. Scrim Tape 1 Roll Precut Serial Numbered Tamper Evident Security Packaging Tape 2 In X 55 Yards X 2 Mil Seal Print Red Tamperstop Security Tape Press firmly into place when applying to ensure conditions are as warm as possible prior to application.