Mural Art 12 Colors Waterproof Metal Glass Fine Paint Oil Based Art Marker Pen Oil-based ink, writing smooth, waterproof, does not fade Color: 12 colors. Material: Metal shell. Length: 14.3cm Permanent and quick drying opaque paint Pen can complete about 200 meters linear write painting Can be written in any surface, metal, glass, wood, plastic, paper and so on. If you paint on tire, you had better to clean first