The Staedtler Pigment Liner Draw Pens are suitable for writing, drawing or sketching. They feature a long, metal tip that works well with rulers and templates. The pigment ink in these pens is lightfast and waterproof, doesn't bleed, and can be erased when used on drafting paper. It has a PP barrel that ensures long-lasting use. 

Sizes in the 8 pack, 0.05, 0.1, 0.3, 0.5, 0.7, 1.0, 1.2 and 0.3-2.0 Chisel.