Any jewelry supply house will carry 10x to 30x loupes. The one sunlight is now carrying is a cheap triplet comparable to ones mentioned before. BTW, it isn't really 30x... I have a PEAK hand-held microscope at 25x & it is much more crisp & larger, but that unit was around 140 vs 15 or less for a loupe. Go on-line & look up "loupe". 10x good for general viewing-30x to see hyphae of mold. BTW, the little loupes are far easier for spot viewing vs any hand-help microscope. Best.