A semi-moist formula and choice pigments blended with formulated binders and dispersing agents. Plenty of room for mixing inside the plastic container on the lid. Non-toxic. Includes paintbrush. This watercolor set is perfect for home or school use! Have all sixteen colors right at your fingertips! This package contains sixteen semi-moist watercolor paints and one paintbrush all in a 9-1/4x4x3/4 inch plastic case.