Kids' art projects will really pop with color with these Suncatcher Paint Pens. These awesome art supplies are great for suncatchers, and the narrow tips are perfect for painting small spaces. Add this set to your arts and craft supplies and help kids create works of art. 15-ml. pens in 12 colors. Safe and non-toxic. Please remove plug from tip of pen before use. Replace plug prior to storing. Conforms to ASTM D-4236.