M8 needle replacement cartridges are suitable. Salon-Quality Skincare at Home: Get microneedling in the comfort of your own home. The user-friendly micro needling kit is specially designed for maximum use for both beginners and seasoned micro needling specialists. Advanced Face Care Tool: The micro needling pen features a high-grade needle design to stimulate your skin's rejuvenation, promoting collagen and elastin production. This results in a smoother and more youthful appearance. Versatile Micro Needle Pen: Adapt the speed and needle length of the beauty pen kit to your needs. Use as a nano needle pen on fine lines, as a microneedle for body, or as a microneedling pen for hair growth. Wireless Convenience: With its cordless design, the microneedle system offers unrestricted movement for maximum control and comfort. Experience the ultimate convenience and flexibility to use on any area of your face or body with ease. Not for sale on Amazon.