Feature:1. LINER SHADER: Tattoo ballpoint pen cartridges are perfect for both lining and shading, allowing you to create precise and intricate designs with ease.2. IMPROVE YOUR SKILLS: Cartridges are ideal for practicing and honing your tattooing technique. Use them on tattoo paper to improve your skills before working on actual skin.3. ANTI DRYING FORMULA: Ink in these cartridges is specially formulated to resist drying, ensuring a consistent flow and preventing clogging. Say goodbye to frustrating interruptions during your tattooing sessions.4. INDIVIDUAL PACKAGING: Each cartridge comes in its own sealed packaging, ensuring hygiene and preventing any leakage or contamination. These cartridges are ready to use right out of the package.5. SELF INKING: With a capacity of 0.2ml per cartridge and with a writing length of approximately 300m, the 0.5mm diameter rolling ball tip ensures effortless and precise line work.6. VERSATILE AND COMPATIBLE: Tattoo ballpoint pen cartridges are compatible with both tattoo cartridge machines and manual tattoo pens. Whether you prefer machine or hand tattooing, these cartridges will meet your needs.Specification:Item Type: Tattoo Ballpoint Pen CartridgesMaterial: PP, LiquidQuantity: 10pcsLiquid Net Content: 2ml / 1pcApplication: Tattoo cartridges machine, cartridges tattoo manual penUse: Novice tattoo artist practice in tattoo paper for improve tattoo skillsStyle: Help novice tattoo artists get started quickly, more economical compared to tattoo needles..Package List:10 x Tattoo Ballpoint Pen CartridgesNote: