Legendary performance, excellent value. Indelible, fade resistant ink, color coded cap, pocket clip, leak-proof aluminum valve. Only all metal marker in the industry. Replaceable felt tips. FOR BEST RESULTS WHEN USING THE IDEAL MARK VALVE ACTION INDELIBLE MARKING PEN: Shake marker until you hear the agitator. Then, twist the cap off and gently pump until the nib is inked. Ideal Mark Valve-Action Indelible Marking Pen idmavainmape$2.70, 12/$30.00Color: 0930-001 Black - In Stock0930-002 Blue - Special Order0930-004 Green - Special Order0930-006 Red - Special Order Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 547 or Internet Sales.