Maybelline Tattoo Studio Liquid Eyeliner Ink Pen, Stone, Flex your fiercest lines. Delivers bold, ink-like intensity and up to 24 hour wear. Its ergonomic 3-point grip gives ultimate control while its pro-flex tip gives ultra-precise lines your way. So flex your liner skills with this sweat-resistant, flake-resistant, fade-resistant and smudge-resistant eyeliner for a long lasting tattoo look. Now you can ink with perfection. Ophthalmologist tested and is suitable for contact lens wearers.