Coarse: A good needle for making the bulk of a 3D piece and again, attaching pieces well. Not really suitable for fine detail work. Barbs on 3 sides.
Medium:A good needle for making the bulk of a 3D piece and again, attaching pieces well. Not good for any detail work. Barbs on 3 sides.
Fine:A fine needle for detail work and getting a neat surface. Best not to use it when working with coarse fibres or for rough sculpting/bulk work. Barbs on 3 sides.
