Chalk Ink Markers contain a pigment-based, paint-like formula that provides vibrant color and opaque coverage. An innovative chalk alternative that works like a paint pen, with the same look and feel of chalk but without the powdery mess. Once dry, Chalk Ink does not smear or come off until removed with water. For painting on wood, ceramics, pottery, glass and plastic. Chalk Ink is ideal for artwork, menu boards, chalkboards, general signage or labeling. Odor-free, water-based Chalk Ink is a safe and non-toxic product.