Origin: CN(Origin) Writing Point: 2mm Type: Oil Ink Type: Permanent Dual-side Writing: No Writing Medium: CD,Tyre Tire Tread,paper,fabric, metal, stone, marble, rubber, ceramic, wood, glass, plastic a more→nd many more. Brush Tip: Round Type: Marker Pen Package Quantity: 20 markers High-quality oil-based opaque and non-toxic permanent ink will allow bold expression on any art surface, and once you finish, the paint result will be bright and vibrant. Write well on paper, fabric, metal, stone, marble, rubber, ceramic, wood, glass, plastic and many more! Waterproof, quick-drying, smear and fade resistant.