Numbering design: The fire extinguisher 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 included to meet your needs. High-quality materials: The plastic safety tamper seal is made of durable plastic, resistant to aging and corrosion, with good elasticity. The numbered zipper seal is ideal for tool kits and provides secure closure without being too difficult to break. Easy to use: In an emergency, simply pull the tie to easily tear off by hand. Features automatic locking and manual release, with adjustable length. These plastic safety tamper tags are convenient and time-saving. Wide range of applications: Suitable for fire extinguishers, first aid kits, zipper bags, cables, cloth bags, hospitals, banks, duty-free shops, supermarkets, ID tags, sprinkler systems, tractors, and trailers. Color: Black, Blue, White, Pink, Orange, Light Blue, Green Material: Plastic Package Contents: 1 set x security tamper seals Note: Light reflection and different displays may cause the color in the image to vary slightly from the actual item. Measurement may vary by +/- 1-3 cm.