PLEASE NOTE: These are NOT counterfeit inserts. These were purchased in a large lot from a local industrial auction at a huge manufacturing plant. I have been burned by counterfeit eBay inserts before; I know what it's like. To be absolutely clear, you may notice that some open boxes have slightly different colored inserts in them. I sometimes combine partial boxes and there can be differences in oxidation. Oftentimes, there are smudges from me handling the inserts to inspect their condition. I guarantee these all to be brand new and I will refund any mistakes with no questions asked.