38 guage triangular felting needle (red tip)
The 38g makes a good all rounder, good for building up the core shape of work, attaching pieces together and adding some detail. The 38 guage encourages the wool to felt up quickly giving a speedy and pleasing result. You can add details but for adding finer details you will find moving up to a 40g helpful.
You can use them to attach felted pieces together and to define areas on your work.