OEM Factory Hot Sell Ballpoint Pen Sterilized Membrane Tattoo Practic Cartridge for Dotwork Drawing & Practice on Paper

With a membrane system to simulate the work of a tattoo needle. OEM Factory Hot Sell Ballpoint Pen Sterilized Membrane Tattoo Cartridge for Dotwork Drawing & Practice on Paper can give a handing-experience like the tattoo needles cartridge.

20 Ballpoint Pen Tattoo Cartridges per box – each cartridge is individually sealed. 
Medical grade plastic ,Eco-friendly ink and membrane system used for superior quality
Spacedragon flow ink offers consistently smooth writing. Perfect for practicing stipple art on paper or skin. Ideal for both beginners and experienced artists.
Smooth, Consistent and Secure, Reliably consistent and quick drying, the Spacedragon ink ensures clean, easy-to-read marks for crisp, accurate communication.
Color: Red,black,yellow,blue,brown,pink,purple,green