Our nail art and graffiti pens are carefully formulated with polyethylene glycol and polyvinyl alcohol. Designed specifically to resist water heat and moisture reduce cracking and fading and prolong the beauty of manicures. The usage method is extremely convenient: 1. Shake the pen body before use to ensure the ink inside is thoroughly and evenly mixed. 2. Place the pen tip upwards and press it to release the pressure inside the pen. 3. Flip the pen body so that the tip is facing down and keep pressing the tip until the ink flows out. The ink has waterproof properties after drying. After use tightly close the pen cap in time to prevent the ink from drying out and affecting subsequent use. Moreover it comes in bright and diverse colors suitable for complex designs enhancing the refinement of manicures. It features fine and smooth paint application. Just shake and press the tip to start using it. Both beginners and professionals can handle it. You can paint flowers abstract patterns and more at home without having to go to a salon for professional manicures.