Feature: 1. Ballpoint pen type, one-piece needle, provides the same experience as tattooing, easy to draw on paper. 2. 20 pcs/set, individually wrapped. Easy to use and hygienic to prevents damage. 3. Transparent housing, the running track is clearly visible, easy to observe. 4. Wax seal anti-dry design, smooth nib, easy to color, even lines. 5. Built-in high-quality spring, strong rebound, comfortable hand feeling, so that hand-painting feels like a tattoo. 6. Five color refills available, the refill color corresponds to the body color, black, green, purple, red, pink, you can choose according to your preference. 7. Suitable for most tattoo machines, learning tattoo painting cost less and more affordable options. Specification: Ballpoint pen type, one-piece needle, provides the same experience as tattooing, easy to draw on paper. Smooth nib, easy to color, even lines. Built-in high-quality spring, strong rebound, comfortable hand feeling, so that hand-painting feels like a tattoo. Five color refills available, you can choose according to your preference. Suitable for most tattoo machines, learning tattoo painting cost less and more affordable options. Features: Ballpoint pen type, one-piece needle, provides the same experience as tattooing, easy to draw on paper. 20 pcs/set, individually wrapped. Easy to use and hygienic to prevents damage. Transparent housing, the running track is clearly visible, easy to observe. Wax seal anti-dry design, smooth nib, easy to color, even lines. Built-in high-quality spring, strong rebound, comfortable hand feeling, so that hand-painting feels like a tattoo. Five color refills available, the refill color corresponds to the body color, you can choose according to your preference. Suitable for most tattoo machines, learning tattoo painting cost less and more affordable options. Specifications: Name: Tattoo Ball Point Pen Material: plastics+metal Color: 5 optional Package size: 165 * 92 * 38mm / 6.50 * 3.62 * 1.50in Package weight: 100g / 3.53ounce Packing List: 1 * Box of Tattoo Ball Point Pen Package List: 1 * Box of Tattoo Ball Point Pen