This waterproof and smudge-proof formula leaves you with brows that won't budge all day. Live The London Look. It's an ultra-precise 1.5mm brow pencil for defining, filling and shaping brows It has a creamy non-dragging formula It's long wearing and waterproof, with a smudge-proof and transfer-proof formula It's double-ended with spoolie brush for blending and grooming. It delivers beautiful brows that last all day long! Directions To apply, use the spoolie brush to comb eyebrows into shape, then use the ultra-fine nib to shape and fill in sparse areas. For the finishing touch, use the spoolie brush to comb through your brows once more to help blend for a natural finish. You'll find that it's easy to remove at the end of the day, too. Get full, naturally defined brows that last with Brow Pro Micro Ultra-Fine Precision Pencil.