The Genuline 6 Regular curved needle is used for delicately etching individual hair strokes into eyebrows. This technique is sometimes referred to as microstroking, microblading, feathering, embroidery, or microetching. An online class for professionals on the Genuline needle technique is available at www.bodyartclasses.com. The 6 Regular is a medium flexibility needle for this technique. It is great for fine hair strokes on normal-thicker skin! Perform 1-3 strokes, with optional taps at the base of each hair for gorgeous realistic hairs!