Artline [EK-70] 2.0 Bullet Tip Permanent Markers are our best selling permanent marker with a bullet nib. Long-lasting, clear drawing is assured with the fast-drying and water-resistant ink that is perfect for marking on most surfaces including paper, plastic and metal. They are low in odor and xylene free with an aluminum barrel for added strength. Recommended Uses included paper, cartons, glass, porcelain, metal, plastic, rubber, and wood.