New. Less than 0.1 mm. Tapered brush tip. Waterproof. Humidity-proof. Smudge-proof. fade-proof. Tapered brush tip measures less than 0.1 mm for super sharp lines. Waterproof liquid eyeliner glides on easily for rich, smudge-proof color that lasts up to 16 hours. Unique tank delivery system creates a continuous flow of pigment with a no-skip brush tip for the perfect line, every time. Ophthalmologist-tested. Safe for contact lens wearers. Cruelty free. Not tested on animals.