Check the listing for details. Makeup Cartridge Needle Tattoo Needles for Eyebrow Lip Makeup Charmant Machine 3. Condition: New. Listed at 12.99 USD. Features: Sterilized and Sealed. Model: Round Liner Needles/Flat Needles. Diameter of connector: 9mm; Connector type: Screw Coupling. Pre-sterilized with Gamma Ray and Individually blister packed. （Attention: The outer package may vary from time to time.） Material: Surgical Grade 304 Stainless Steel and plastic. if you are not sure whether is it working with your machine, please double check with us before order. Dispoable design, for single use only. Please check your Rotary Machine Pen and make sure the needles fit your device before purchase. Note: this microneedle diameter is 9 mm,Suitable for the Charmant 2nd and 3rd version only ,but as there are several types charmant tattoo machine on the market,they fit different needle,so,please kindly check it before buying or contact us if you.