This 30ml bottle of xylene-free refill ink is designed for use with Pilot Super Colour Permanent Markers.Super Colour Permanent Marker Ink provides vivid, dense writing that's clearly visible from a distance.The fast-drying, permanent ink will write on most surfaces including wood, plastic, metal, and glass - virtually anything.The ink is waterproof so it dries instantly! Refill your Super Marker today and reduce waste.Be Positive with the Planet!