Self-locking plastic tie strap is permanently attached to the tag. The 8" long, ribbed tie strap adjusts and locks for tight security with a rated 50-lb pull strength and can only be cut or pulled apart with excessive force. A reinforced metal grommet with 3/8" hole secures the tie strap to the 15-mil RP-Plastic tag - 5 ¾" x 3 ¼" shackle.