these colors have ordered for child's birthday when we were 12 kids I ordered 2 packs. We have painted with the colors of white porcelain plates. The birthday is now 1 year ago and I regret to inform that the colors do not hold although we adhered to the paint precisely to package directions ---- the color wash from time to time get out .... So in the washing machine but according to the description should the colors stand "because of the price and the short life only a star at the birthday party had arrived super idea!