Micro Needle Roller System with Photon Treatment-LD-R4 200 titanum needles needle ... .0mm, 1.5mm, 2.0mm Micro Needle Roller System with Photon Treatment-LD-R4The Parameter:-8 disks x 25 ... smooth,white and charming!2. 633nm Red light high-energy narrow-band, speed up healing:to make human ... cell metabolism.3. 590nm±5nm Yellow light will give energy for the skin, improve immunity ability for the skin ...