SEAL, ANTIPILFERAGE(SELF-LOCKING): THE ANTI- PILFERAGE SEAL IA A LOCKING DEVISE USED TO DETECT TAMPERING OR ENTRY. STRAP SEALS IAW ASTM F 1157. STYLE STRAP, CAR/BALL END SEAL, 6 IN LNG0.3 IN WIDE, MANUFACTURARS STANDARD STEEL OR ALUMINUM. SEALS MARKED W/LETTERS "US" & SERIAL NUMBERS CONSECUTIVE, NOT TO BE DUPLICATED. UNIT OF ISSUE - 100 SEALS PER BOX.