Numbering design: The seal is laser printed with a default serial number displayed in black letters to facilitate recording information during use. The total length of the stamp seal is 9.8 inches / 250 mm. Tamper-proof: One-time use numbered zipper tamper seals, each with a unique identification number. Once locked, the zippered plastic tag cannot be opened. 1000 pieces of self-locking stamp seals provide ample supply for various applications. High quality materials: The plastic safety tamper seal is made of durable plastic, offering anti-aging, corrosion-resistant properties and good elasticity. The numbered zipper seal is ideal for tool kits, providing secure closure that is not overly difficult to break. Easy to use: In emergency situations, simply pull the tie and the seal can be easily torn off by hand. Features automatic locking and manual release, with adjustable length for convenience. Wide range of applications: Suitable for fire extinguishers, tool kits, zipper bags, cables, cloth bags, hospitals, duty-free shops, supermarkets, ID tags, sprinkler systems, and trailers. Color: White Material: Plastic Package Contents: 1 set x Security tags (1000 pieces) Note: Light reflection and different displays may cause slight color variation between the image and the actual item. Measurement allows an error of +/- 1-3 cm.