Holders can be fixed using the following: cable ties, rivets, adhesive strips or glue, inbuilt claw (Claw Tag Only), keyring or split ring (AssetTag MINI only). With no insert in place the message 'Do not use this equipment Information tag is missing', along with 'Ref: No.' is displayed. They are made from reinforced Nylon and are resistant to moisture, temperature and oils. The material has been specifically chosen to be flexible, making them nearly impossible to snap, and they will not chip or crack in even the harshest of conditions. Each holder also has a 'break' in the edge wall to allow for easy removal of the insert. Slip a screw driver in at this point behind the tag and flip the insert out. All holders are manufactured from Nylon composite providing excellent strength and flexibility even in temperature extremes.