School Smart Art Markers take art to an effortless level with a vivid black color and durable conical shaped nibs. They are designed for making smudge-resistant medium lines, broad strokes, or allover thorough coverage. Glides smoothly across any type of paper. Tips hold up to active daily use without wearing down. Great for young classrooms, as formula comes off hands and most fabrics with soapy water. Non-toxic.