Self Adhesive Security Seals guard against tampering, alteration and counterfeiting during shipping. T.R.A.C. Seals are an easy deterrent to theft and fraud. Adhesive Security Seals provide security and tracking functions. Sentrinel Adhesive seals have a tear-off matching tracking number to put on a shipping manifest or paperwork. Some Label Seals are available in different sizes for greater need fulfillment.