Numbering Design: The fire extinguisher seal is laser printed with a default serial number displayed in black letters, convenient for recording information during use. The total length of the stamp seals is 9.8 inches (250 mm). Tamper Proof: Numbered zip tamper seals are for one-time use and each has a unique serial number. Pull-tight plastic tags cannot be reopened once locked. 1000 pieces of self-locking stamp seals are included to meet your needs. Quality Materials: Plastic security tamper seals are made of durable plastic resistant to aging, corrosion, and offer good resilience. Numbered zip seals are ideal for tool kits—secure yet easy to break when necessary. Easy to Use: Pull-up ties can be easily torn off by hand in emergencies. Self-locking design with adjustable length allows for quick and simple use without tools. Wide Application: Suitable for fire extinguishers, first aid kits, zippered bags, cables, luggage, bags, hospitals, banks, duty-free shops, supermarkets, ID tags, sprinkler systems, tractors, and trailers. Commonly used in retail stores for luggage, bags, shoes, and clothing as security tags. Also used on emergency exits, ambulances, and for securing bags during transport. One-time use, self-locking mechanism, adjustable length. Tear off by hand easily—no tools required, saving time. Total length: 9.8 inches (250 mm) Color: Multicolor (4 colors: yellow 400 pcs, light blue 200 pcs, green 200 pcs, red 200 pcs) or yellow Material: Plastic Package Contents: 1000 x Security tags Note: Light reflection and different displays may cause slight color variation between the image and the actual item. Measurement allowance is +/- 1-3 cm.