The Security Seal Press Lead and Wire Seal is a tamper evident security seal made of lead and wire. It has an internal unique 6 digit serial number and once crimped, cannot be removed without visible damage. The lead body is 1.25" long x 0.5" diameter. It comes in a bag of 100 seals and is used for securing trucks, railcars, cargo containers, bags, meters, valves and more. The malleable lead adapts and conforms to fit a wide range of applications.