Revlon's Crazy Shine Nail Buffer is a revolutionary nail buffer that creates instant mirror-like shine. It's the easy way to create top-coat shine that will last up to 3 days. Suggested Use:Use on bare nails for polished shine.Step 1: Use the green side to smooth and even oout nail surface.Step 2: Use the white side to polish nail to mirror-like shine. Use the white side on polished nails to revive nail enamel shine. Directions Bare nails - Step 1. Use green side to smooth and even out nail surface. Step 2. Use white side to polish nail to an outrageous shine. Polished nails - Use white side to revive nail polish luster. See all