Had me a (2 purchases) set new pizza tray, since the old already "old" looked. 32cm Optimal. However, this sheet bulges extremely when heated !!! It has cooled down again completely smooth? Had a Tarte tried and has even now no high edge. Thus, the sauce ran down the sides on's plate and through the holes. But the only result of which, she buckled so! Too bad! Non-stick effect super! But again I would not buy .... :-( Sorry, no buy recommendation!