The Pilot SCA 400 Permanent Marker features ink technology that will not fade and allows you to write on most hard surfaces including glass, plastic, wood and more. It has the ability to maintain its quality even when the cap has been left off for 24 hours making it a great quality permanent marker for your office, school or home. Water-resistant, perfect for indoor and outdoor use. 1.5mm-4.0mm chisel tip. Blue ink.