When it’s time to get your nails just right, make the OPI Nail Lacquer Thinner 2 oz a part of your manicure arsenal. This premium product improves the consistency of your favorite nail lacquer for superior application and finish. Stop struggling with nail polish that has started to harden and become more difficult to spread. To use, apply a few drops of the OPI Nail Lacquer Thinner to your nail polish bottle and shake. Now your nail polish has a new lease of life and so do your fingernails and toenails!