We bought this to use for our Girl Scout troop to tie dye tshirts. Cotton tshirts - 9 little girls with size S > XL white tshirts. And 6 mamas with size M - XXL white tshirts. And we had tons of extra dye after so I took it home and did another 7 shirts and still had some left over of the colors. The colors are bright and not fading even after the wearing and washing since we made them a few months ago. Hint > follow the instructions regarding which material shirts to get and pre-soak/ washing.