20 Pack Cartridge Needles 3RL for Tattoo Pen Machines Clear, reliable cartridge needles designed for precise permanent makeup work. Each pack contains 20 cartridge needles in a 3RL configuration, suitable for eyebrow, eyeliner, and lip liner applications with cartridgestyle tattoo machines. Key benefits Precision lining: 3RL configuration delivers fine, controlled lines ideal for detailed eyebrow shaping, eyeliner definition, and lip liner contouring. Ready replenishment: 20 pieces per pack help maintain workflow and reduce interruptions during appointments or practice sessions. Cartridge format: Built for use with cartridgestyle tattoo pen machines to simplify needle changes and maintain consistent handling. Versatile application: Suitable for permanent eyebrow tattooing, eyeliner work, and lip lining as part of tattoo kits and microblading supplies. Important attributes Quantity: 20 pieces per pack Needle configuration: 3RL (3 Round Liner) Function: Permanent eyebrow needles, also used for eyeliner and lip liner Compatibility: Designed for cartridgestyle tattoo pen machines and tattoo kits that accept cartridge needles Practical use scenarios Professional salon session: A technician uses 3RL cartridges to create crisp eyebrow hair strokes and naturallooking shading while keeping needle changes quick and efficient. Eyeliner definition: A lining pass with a 3RL cartridge provides clean, precise eyeliner lines for clients seeking defined permanent eyeliner. Lip liner application: Use the 3RL configuration for accurate lip contouring and edge definition as part of a full lip lining procedure. Why choose these cartridges Simplified tool handling with cartridge compatibility and a focused 3RL configuration for detailed work. Bulk pack supports multiple clients or training sessions without frequent repurchasing. Practical choice for professionals stocking tattoo kits and microblading supplies. Compatibility note Intended for use with tattoo pen machines and tattoo kits that accept cartridge needles in the 3RL configuration. Verify machine compatibility before use.