This is a set of 6 drumheads, 12" in size. Breakdown (from worst to best condition): REMO Weatherking CS REMO Weatherking Clear Ambassador REMO Weatherking Pinstripe MAPEX (by REMO) UT Coated RMV Standard-Coated Single-Ply RMV Classic Duo Coated The three REMO heads have a fair amount of wear. The CS in particular has tape residue and a lot of dirt, with numerous pinpoint dents from sticks. The Clear and Pinstripe have one or two dents from sticks. The MAPEX has mute marks, but no stick dents when viewed from the back. The two RMV heads have wear but no dents. These haven't been used to the point where they're completely warped after years of playing without changing the heads (well, they're for toms, not the snare, so I don't hit them as hard, haha). However, the three REMO heads, especially the CS, are more of a bonus. But you can still use them to check the difference in sound when changing heads. Please use them for practice and study. (As a lo-fi drummer, the three coated heads are still in good condition, so I can still use them for live performances and recordings, haha.) Please check the images for details. Thank you.