20pcs 2" Sanding Sleeves Bands for Drum Spindle Sander 80ish Grit

These are not marked and the box they were in was not marked. I had other sanding stuff from the same place that was all marked 80 grit and this FEELS like 80 grit but I cannot be sure as it is not marked. The abrasive is the same color as other Norton abrasives I found them with so I THINK they are Norton but I am not for sure.
20 Pack. Listing is for 20 pieces.
2in x 2in

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