For artistic precision: the Infaillible 36h Grip Micro-Fine Liner is the tool for ultra-fine liner looks. The flexible brush tip allows for fine lines, providing full control with every stroke. Additionally, the liquid formula offers semi-permanent eyeliner that is smudge-proof and waterproof with up to 36 hours of wear. This allows for limitless creativity: from thin to more detailed, curvy lines. With this eyeliner, classic makeup can be refined or entirely new looks can be explored.