Permanent Impression Markers are perfect for writing, drawing, or lettering on a variety of surface types including plastic, glass, metal, rubber, wood and much more. The durable tip allows extended use. Ultrafine point delivers precise lines. Ink is faderesistant and waterresistant, and will not smear. Stylish barrel features a rubber grip for writing comfort and a cap with pocket clip. Each marker conforms to ASTM D4236 standards.