Speedball has been a trusted name in handcrafted nibs and pens for the calligrapher, letterer, and drawing artist for over 100 years. A specially formulated cleaner designed to keep dip pens, fountain pens, and technical pens working like new. Also great at removing dried ink from drafting film and can be used to clean fine jewelry. This package contains 16 fl oz/480mL of Pen Cleaner. Conforms to ASTM d4236. Made in USA.