The Forney 70821 blue paint markers are oil-based paint markers for permanent marking on most surfaces. Intense, highly visible, quick drying colors are water and weather resistant. Precision valve regulates paint flow. For use on metal, plastic, rubber, wood, ceramics, glass, textiles, cement and more. With cap in place, shake vigorously. Depress tip to start paint flow. Replace cap, store on side. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets. If you've got metal working questions, we've got answers. Were committed to your success regardless of location size or needs. 10 cc's of paint. Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.