Watercolor paint essentials! These washable paint trays are essential art supplies no classroom or day care should be without. Featuring Crayola's® legendary quality, each plastic tray contains 16 assorted colors and a paintbrush. These bright vivid colors are fun to use, so watch all the kids get creative! Safe and non-toxic. 9" x 3 3/4" Conforms to ASTM D-4236.