Serial Number Without Repeatedly: each of anti tamper seals is printed with numbered, and when you lock them to that you want to protect, there is no need to worry that others buy the same seal to replace them, this can effectively prevent unauthorized entry, theft and loss of goods, enough to the security of your products. Guard Your Items Safety: the metal wire security seals can be adjusted to the length you want to lock, once inserted permanently blocked, cannot be easily removed or replaced, very safe; If you want to remove it, you just need to use wire cutters to remove it. Ample Quantities: the package comes with 100 pieces of steel security cable seals, ample quantities can meet you a variety of locking usage and replacement needs. ABS Plastic Zinc Casting: self locking seal is made of zinc casting and steel wire, the length of steel wire is about 11.8 inch and the , you can adjust the length to the desired length according to the tension of the steel wire, the length is adjustable, not retractable. Wide Range of Applications: the steel wire security seals are widely suitable for warehouse, fire extinguishers, trucks, containers, cables, mail packages, suitcases, suitcases, bags, hospitals, , markets, donation box, etc., which can guard your property and articles safety colour: A:Blue material: Plastic + Steel Package Contents: 100 Pcs x Steel Security Cable Seals Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.