30 Pack 8mm Screw Needle Cartridges for Permanent Makeup Key benefits Precise and consistent results: Stainless steel needles are sharp and resilient to deliver clean, even lines for eyebrow, eyeliner, and lip work. Ready for single use: Each cartridge is individually packaged for hygienic, singleuse disposal. Direct compatibility: Designed to fit machines with an 8mm screw needle port, including Charmant models that use an 8mm diameter screw. Suitable for all skill levels: Practical choice for beginners learning technique and for professional artists who need reliable disposable cartridges. Product details Quantity: 30 cartridges per pack Material: Stainless steel Screw diameter: 8mm Applications: Permanent eyebrow shaping, eyeliner definition, lip contouring and shading Packaging: Individually bagged cartridges for single use only Typical use scenarios Eyebrow microstroking and shading to create defined, natural looking brows. Eyeliner application for precise upper or lower lash line enhancement. Lip contouring and color packing for even, controlled pigment placement. Why choose these cartridges Durable stainless steel construction maintains needle integrity during procedures. 8mm screw design ensures a secure fit with compatible machines, reducing wobble and improving control. Individually packaged cartridges simplify setup and cleanup while supporting disposable workflows. Compatibility note Compatible with machines that accept an 8mm screw diameter needle port, including Charmant models specified for 8mm screws. Ensure your device uses an 8mm screw port before .