With just an invisible clear chubby pencil, smudginess can be wiped away in seconds. Apply the Smudge Eraser Stick as liner where ever you have smeared liner or mascara. Then, take a cotton swab and wipe away. Voila! The Smudge Eraser Stick makes it so easy to remove any mascara marks or eyeliner smudge. No concealer, no tissue, no sponges, no wipes, just the Smudge Eraser Stick and a cotton swab. Use this pencil to also perfect your cat winged liner. This product is a total problem solver and something every girl needs!