1.100% SAFE NON-TOXIC - Water-based dye inks, odorless, non-toxic, colors can be dispersed and mixed with water, easy to wash on clothes and skin, Conforms to ASTM D-4236.So the drawing pens is perfectly safe for you and your kids.
2.WIDELY USED - These dual brush pens are great for adult coloring books, drawing, lettering, sketching, doodling and just about anything else. The markers for kids, adults, teacher, students, beginners and 
3.package include:1pcs*Watercolor Markers