0.5 mm. Needle tip. Smoothest writing ink (Internally tested to be smoother writing than the leading gel pen standard writing paper). No smear. High performance ink technology combines the best qualities of liquid and gel ink for a smooth writing experience. Durable metal clip. Liquid gel ink dries so fast even left handed writers love it-no smears. No smudges. No globs. Maximum comfort and control with latex-free grip. Remove tip cover before using. 0.5 mm needle tip writes fine lines. Limited warranty (Valid in USA. only). For warranty service, please visit www.pentelworld.com or contact us at Pentel of /menu, Ltd 4000 E Airport Drive, Suite C, Ontario, CA 91761. www.pentel.com. Visit us at www.pentel.com. A recycology eco-friendly product. 54% a recycology eco-friendly product (Recycology products are a minimum of 50% recycled material by weight excluding consumable content and refills). Please recycle package. Made in Japan.