John Pike Palette It is made by the very expensive "injection mold" process, using high-impact Styrene The palette is large - 15" x 10 1/2" x 5/8" with 20, 1-1/2" paint wells The snap-on cover is an additional palette Absolute guarantee against very mild staining is impossible when the popular "Thalo" colors(Phthalocyanine) are used