Plastic Security Seal or Tag has Pull tight locking mechanism by hand and can be removed with cutter. Which can be used in locking Courier Bag, Plastic Bag, Bin Locking, Chemical Bag Sealing, Milk Can Locking, Truck Tarpaulin or small applications etc. This can be used for smaller applications with very low level of tensile strength. The seal is made with plastic material which may break if your put any pressure. Further its teeth will get damaged if you pull it opposite direction and will not work properly. If you are looking for stronger seal or tensile seal you may choose other metal or bolt kind of seals.