This is a size C Remastered Aeron seat pan. WIL L NOT FIT SIZE A OR SIZE B. ONLY INTENDED FOR USE ON THE REMASTERED AERON. But it will technically fit a classic with little to no modifications. Message if unsure or need details. Very few blemishes, scratches, or scuffs. Has the normal molding flash characteristic of all Herman Miller plastic parts — molding flash is NOT a defect or a sign of wear. No issues with the mesh. No issues with the structure of the frame. No hip pivot bolts included — you will reuse your old ones. No seat link bolts/nuts either — you will reuse your old ones.