Number design: The seal features laser printing with a default serial number displayed in black letters, making it easy to record information during use. The total length of the red seal is 9.8 inches (250 millimeters). Tamper proof: The numbered zipper tamper-proof seal is disposable, with each seal having a unique identification number. Once the plastic label is locked, it cannot be reopened. 1000 self-locking seals are included to meet your needs. High quality materials: Plastic security and anti-theft seals are made of PP plastic, offering resistance to aging, corrosion, and providing good elasticity. Digital zipper seals are a reliable choice for tool kits, offering sufficient security without being overly difficult to break. Easy to use: In emergency situations, the pull-tie can be easily torn by hand. The seal is self-locking, hand-breakable, simple to use, and features adjustable length. Plastic security labels are designed to meet your practical needs efficiently. Widely used: Numbered disposable tamper-proof seals are suitable for fire extinguishers, tool kits, zipper bags, cables, fabrics, bags, hospitals, duty-free shops, supermarkets, ID cards, sprinklers, and trailers. Color: Red Material: Plastic Package Contents: 1000 x Security tags Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.