Number of Pieces:  Combo
Microneedle Length:  0.25mm
Material:  Plastic
Power Source:  None Electric
Size:  As picture show
Needle number:  9/12/24/36/42/Body 42 pin/Nano/5D/3D
Function:  Skin Rejuvenatoin
Nano needle interface:  Screw Suits
Function 1:  Skin Rejuvenation Anti Wrinkle Moisturizing