The seal include 100 pcs. safety ties size:250 mm (9.8 inches), blank tag size (writing area):30mm X 20mm/1.2inchX 0.79inch, which is convenient for recording information during use. Numbered zip tamper seals are one time using and pull- security tags have a locking mechanism with adjustable length; Pull tight plastic tags can't be opened once locked; 1000 pieces of self locking stamp seals are sufficient to meet your needs. Plastic security tamper seals are made of PP plastic, which is resistant to aging, corrosion and good resilience; Number zip seals are perfect for tool kits, secure enough but not too difficult to break. Pull up ties are tear off by hand when emergencies come up; Self locking and hand breaking up, easy to use and length is adjustable; Plastic security tamper tags will meet your needs and save your time. Numbered disposable tamper seals are suitable for , kit, zippered bags, cables, cloth, bags, hospital, bank, duty free shop, supermarkets, ID tags, sprinkler systems, and trailers. Color: Blue Material: plastic Package Contents: 1 set x security tags removal 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.