Sanford-Sharpie Extreme Permanent Markers: Black, Blue, Red & Green. Fine, durable tip delivers bold color and lines on most surfaces including plastic, glass and wood. Ideal for sporting equipment, camping gear, playground toys, water bottles and more. Stands up against the sun and UV rays. This package contains four 5-3/8 inch long fine point permanent markers. Conforms to ASTM D 4236. Imported.