How long have you had that harness, rope or helmet? Which holidays has it been on? Can you spot it in any photos to help identify how long you have had it?
Below is a link to a crib sheet of the main manufacturers and key items and how long you should keep them active for before retiring compiled by a friend of mine.
https://drive.google.com/file/d/0B4mXcs ... sp=sharing
Cheers,
Marq