They cheat by weight. take a measurement on your electronic scales, and then hang them on their prehistoric Soviet times (apparently they don't change them specifically, because it's easier to cheat on this junk). I brought chermet, more than 60kg, on their scales they "rounded" up to 50kg. non-ferrous metal was 770grams (it was weighed at home on electronic scales) but their switchers showed 700. so think: colored by 10%, chermet is being deceived by 15%.