RETURNED: The metal parts of this box are on spec and look normal but only 6 of the 20 pink ceramic lids were on spec and could have been screwed onto my AG -60 vinyl cutter ( Amico Cut plasma cutter -50HF). Some of the others were too big, some too small, and some had incompatible streams. Very disappointing. To make matters worse, there is no brand or manufacturer listed on this pack, so ordering a different and hopefully matching pack is a matter of trial and error.