3D nano needle Needle Cartridge For Dr. Pen A1 Derma Pen Needle 12pin Bayonet Coupling Connection Good Quality Needles

Dr.Pen A1 needle: 1/3/5/7/9/12/36/42 pins, nano needle pins needle head medical metal needle adjustable needle length: 0.25mm-3.0mm The needle just use for Dr.pen A1 model