Embark on your tattooing journey with confidence using our Inlumino Heart Ink Ballpoint Dot Pen Cartridges. Each package contains six meticulously crafted cartridges, offering ample opportunities for practice and creativity. With six cartridges in original black ink you'll have a solid foundation to develop your skills. Crafted with precision, these ballpoint pen cartridges feature a 0.5mm tip size, ideal for mastering intricate designs and fine details. Practice on paper with confidence, knowing our cartridges deliver consistent and reliable performance, ensuring a seamless learning experience. Experience extended practice sessions without interruption, as each cartridge boasts a remarkable four-hour lifespan of continual use. Our cartridges are designed to be compatible with most tattoo machines, providing versatility and convenience for aspiring tattoo artists. As part of our commitment to innovation, we are continuously sourcing adapters for coil machines, exploring different ballpoint sizes, and developing new products to enhance your tattoo learning process. Rest assured, our cartridges are designed with your safety in mind and will not harm your tattoo machine under normal usage conditions. Specifications: Six ballpoint dot pen cartridges per box Includes six cartridges in original black ink 0.5mm ballpoint size for precise detailing Ink lasts for an impressive four hours of continual use per cartridge The patented design ensures quality and innovation Please note: Tattoo machine not included Equip yourself with the tools you need to unleash your creativity and master the art of tattooing with Inlumino Heart Ink Ballpoint Dot Pen Cartridges. Join countless aspiring artists who have chosen Inlumino for their tattoo practice needs. Start your journey today!