uni PIN Sketch Selection Pigment Ink Fine Line Pen 01mm 0.3mm Tip & 0.5mm Tip\n\nuni PIN Sketch Selection Pigment Ink Fine Line Pen 01mm 0.3mm Tip & 0.5mm Tip\n\n--Contains three black fine tip pens in fully biodegradable packaging\n\n--Felt tip pens in 0.1mm, 0.5mm and brush tip\n\n--The fineliners are excellent for drawing, writing and graphic design\n\n--These artist pens contain fade-proof, water resistant pigment ink\n\nLove to sketch and draw? A uni-PIN pen is the perfect tool for you. The uni-ball PIN is the pros choice. An excellent artist pen, it contains fade proof and water resistant Super Ink \u2013 great as you want your creations to last. Its solid pigment ink line is clear, clean and precise, which is why the PIN is loved by professional artists and illustrators, graphic artists and architects. The ink is water resistant too so the pens can be used with watercolour and will not smudge when wet. Its choice of black PIN nib sizes from delicate 0.03 to a heavy 1.2.