Pro-Art 8-Ounce Premium Gesso Canvas Primer This is a professional grade 100 percent acrylic gesso formulated with the latest acrylic technology for adhesion and flexibility Features excellent tooth and absorbency to accept oil and acrylic colors, pastels, charcoal, pencil, and crayons This package contains 8 fluid ounces of gesso canvas primer It is non-toxic and conforms to ASTM D4236