Permanent Makeup Cartridge Needles Screw Thread Tattoo Needle for Permanent Makeup Machine Tattoo Pen for Eyebrow EyelinerSize: 1r-0.3mm sizes available: 1r--0.18mm: nano cartridge needles. Fits for delicate hair on eyebrow, thinnest eyeliner. 1r--0.2mm: nano cartridge needles. Fits for delicate hair on eyebrow, thinnest eyeliner. 1r--0.25mm: nano cartridge needles. Fits for delicate hair on eyebrow, thin eyeliner. 1r--0.30mm: fits for lip contour, eyebrows and eyeliner. 3rl--0.25mm: fits for lip contour, eyebrows and eyeliner. 5rl--0.25mm: fits for lip contour, lip shading, eyebrows and eyeliner. Biomaser is a professional tattoopany and focus on provide high quality products (such as permanent makeup machine, tattoo power supply etc. ) of permanent makeup. Hope that our products can bring you a safe, beautiful and happy life. Please e-mail us, if you have any problem or suggestions with our products, we will serve you wholeheartedly