The liquid formula that is easy to apply, transfer, flake and smudge resistant. The perfect ally to finally achieve your liner goals. Its ultra thin tip of 0.1mm delivers an up to 0.4mm fine line with an ink formula supercharged with luminous carbon-black pigments. Ultra glossy black result in just one stroke, outstanding effect even in the shadow.The Key Benefits of Lancome Idole Ultra Precise Waterproof Eyeliner:One-stroke glossy black waterproof formulaUp to 24h wearEasy to apply even for beginnersHow to apply liquid eyeliner:Step 1: Top line: draw a line on your lash line.Step 2: Arrow line: continue your line and do a cat eye.Step 3: Bottom line: draw a line on your bottom lash.Step 4: Precision line: start at the end of your cat eye and draw a line in order to achieve a V shape.