Individual felting needles in various sizes listed below.
Fine:
Barbs on three sides. 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. Triangular, 40 gauge.
Medium:
Barbs on three sides. A good needle for making the bulk of a 3D piece and again, attaching pieces well. Not good for any detail work. Triangular, 36 gauge.
Coarse:
Barbs on three sides. This is a sturdy needle good for working with course fibres and firmly attaching pieces. Not great for detail or a neat surface. Triangular, 32 gauge.
Star:
With barbs on four sides it is a great all round needle, good for finer work and finer wools as well as bulky sculpting work. 38 gauge.