OPI sets are a great gift idea for a friend or relative… or as a lovely treat for yourself! Each of these collections contains a selection of gorgeous nail polish from this much-loved and respected nailcare brand. Choose from OPI sets of mini and full-size polishes, which all offer a streak-free and chip-resistant finish. With trend-setting shades and iconic names, these sets are simply irresistible. Falling in love with these sets is unavoidable but choosing just one is a real challenge! Discover your new favourite on-trend OPI nail polish shades below. Who will you treat?