Sargent Art® Artist Chalk Pastels feature brilliant pigments and smooth velvety texture. Each square chalk stick measures 2.5" x 0.375" . Each set comes packaged in a lift-lid box. Non-toxic and conforms to ASTM D 4236. Each pack includes 24 chalk pastels: White, Ochre, Dk Flesh, Cad Yell, Cad Org, Org, Alizarin Crimson, Nougat, Sanguine, Burnt Ochre, Indanthrene Blue, Violet, Perm Green, Olive Green, Phtalo Green, Leaf Green, Dk Phtalo Green, Lt Cobalt Turq, Med Phtalo Blue, Cobalt Blue, Cool Grey 1, 2, 4, 5, and Black.