OPI Terribly Nice Gel Add-On Kit 1 includes 6 festive GelColor shades: Yay or Neigh, Rebel with a Clause, Let’s Scrooge, Hot Toddy Naughty, Five Golden Flings, and Peppermint Bark and Bite. This holiday-ready add-on kit is perfect for creating bold, sparkling, and salon-quality manicures with rich color and long-lasting shine.