Atelier Interactive Professional Artists' Acrylics have a patented formula that allows them to remain workable when kept moist. Impasto colors are made with quality lightfast pigments. For use on canvas, canvas board, paper and linen. This set has 20ml tubes of: Crimson, Trans Perinone Orange, Arylamide Yellow Lt, Arylamide Yellow Dp, Yellow Ochre, Burnt Sienna, French Ultra Blue, Diox Purple, Pthalo Green, Perm Green Lt, Carbon Black & Titanium White. Unique additives, in 60ml bottles, slow and fast medium, unlocking formula & spray bottle help further explore these acryilcs.