PRINCETON Catalyst Polytip 6400 Bristle Round (LH) Winsor & Newton Non-firing clay is the natural

Non-firing clay is the natural clay for modeling that self-hardens in the air without the need for firing

4mm Tip for Precision: Each marker in this set features a precise 0

such as white or yellow

Acid-Free and Long-Lasting: Each sheet is acid-free

Best For: Graphite pencils

PRINCETON Catalyst Polytip 6400 Bristle Round (LH) Winsor & Newton Non-firing clay is the naturalROUND: Thick to thin strokes; for detail or filling in large areas depending on brush size and pressure applied. Catalyst Polytip Bristle brushes are another Princeton breakthrough that advances the science of synthetic hair. This new series is super stiff yet still extremely responsive. Unlike natural hog bristle, Catalyst has real integrity in water. Natural bristle can be rendered useless when it is water soaked. The true advance in Catalyst is the