OPI Infinite Shine Top Coat Prostay Gloss 0.5 oz is part of a revolutionary process to give your nails unbelievable shine in a formula that lasts for a long time. You won’t have to worry about needing a new manicure or pedicure between salon visits. When used with the matching Infinite Shine Base Coat and your favorite OPI Infinite Shine color, you’re left with mirror-like luster in a durable finish.