Sample cards and a box to hold them. They are large so you can get a better idea of the color when comparing. There is a hole if you want to put them on a key ring.
First I thought it was just my issue with bed adhesion but nope by about the 10th layer these little nubs started forming, the nubs would drag on the nozzle with every pass. Stopped the print to prevent damage to my nozzle or horned. See pictures. Using eSUN PLA and haven't had a problem with the filament yet.