OPI Buttafly A soft yellow shimmer nail polish that’ll make your heart flutter. Spread those wings and create a super-fly, super-you look this spring. Lay the foundation with a soft, yellow shimmer nail polish that will surely make your heart flutter. Where this look goes next is all up in the air. But that’s the fun part! Benefits Up to seven days of wear. Fast-drying formula. Over 200 shades to choose from. Use After prepping nails, apply one coat of OPI Natural Nail Base Coat. Apply two thin coats of color to each nail, ensuring you brush some polish on the free edge to prevent chipping. Top it off with OPI Top Coat. Don't forget to cap that free edge!