Dr pen Electric Micro Tiny Needles Derma Pen Professional Wireless Anti Aging Skin Rejuvenation Microneedle Roller Skin CareBrand Name: Deciniee Microneedle Length: 0. 3mm Material: Metal Power Source: Rechargeable Battery Power Source: AU Power Source: UK Power Source: EU Power Source: US Color: Pink Gold Silver Product name: Rechargeable Microneedles derma pen Working level: 5 levels speed Power type: Wireless Model: Electric microneedling dr pen Needle Interface: Screw tips Application: For Commercial & Home Use Function 1: Remove scars Function 2: Activate collagen