Staedtler Pigment Liner Sketch PenSTD 308BK4
Pigment liner pen is designed for art, craft, sketching and drawing. Durable metal clad fiber tip is perfect for precise lines. Long length is ideal for use with rulers and templates. Fineliner sketch pen contains archival quality, acid free ink. Permanent, lightfast, pigmented ink dries quickly and is waterproof and smear free. Conforms to ASTM D-4236.