Chroma - Atelier Interactive 7 x 80ml Tube Set - The perfect set to get you started 7 x 80ml tubes of Atelier Interactive Artists' Acrylic in Burnt Umber Titanium White Pthalo Green Arylamide Yellow Light Cobalt Blue Hue Napthol Red Light and Crimson. Atelier Interactive Artists' Acrylic dries without a plastic skin unlike conventional acrylics giving the artist a window of opportunity in which to rehydrate the paint for a limited time. Interactive is thick and buttery allowing you to apply thick impasto techniques or it can be diluted to create vibrant washes and glazes. Interactive is so unique it has a patent pending.