Our premium-quality, semi-moist watercolor sets offer vivid, non-toxic colors that mix well and flow easily. Each set includes a #7 watercolor brush. Primary refill strip includes colors in the 8-Color Set. Secondary refill strip includes additional colors in the 16-Color Set. Classroom pack includes thirty 8-color oval pan sets and 12 refill strips. Sax Arts & Crafts Products Are Developed By Our Team of Art Professionals And Former Art Educators. Created for artists and designed for the rigors of the classroom. Perfect for class or home use. Brought to you by School Specialty.