Article fully consistent with the ad. Thank you the customer who reported the specific attention to the plug (drawing 1 of the record), CAP SHOULD REMOVE. And indeed, dear seller, this point deserves to be highlighted in the manual. Otherwise, no problem fitting, comfortable seat and backrest. Very light material, but at that price, do not expect the high density. Very happy with my purchase that I use every day for several hours while I work my instrument.