Duo pack includes: Primer base coat and gloss top coat to pair with your favorite nail polish shades | Better together, when used together, ProStay Primer and Gloss provide optimum sticking power, less chipping, 60% higher gloss retention, and 25% higher shine | Long lasting nail polish, OPI Infinite Shine uses innovative technology to use natural, ambient light to cure the gloss and color coat | Achieve Gel Nail Polish like wear and shine for up to 11 days that removes easily with nail polish remover | Apply OPI primer base coat: Then, apply two coats of Nail Polish color, finish with gloss top coat, then let dry | OPI Nail Polish is available in 150 plus polishes including OPI's most iconic Nail Polish and Gel Nail Polish shades | If this OPI product is one of your faves, schedule your deliveries with subscribe and save so you never run out