SELECT YOUR NEEDLE LENGTH. DRS180 microneedling derma roller features, 1. 180 pins medical grade stainless steel needles. 2. Black and white pc plastic handle available. 3. 0.2 mm, 0.25 mm, 0.3 mm, 0.5 mm, 0.75 mm, 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm needle length available.