The Sweet Flower nail sticker's pastel color matches any skin tone, it has a cute flower design that will fit with your everyday look.. What's Inside. Component: 1 BTS x Gelato Factory Jellymix Nail Firework Festival (RETRO Edition). How to use. Before attaching it, make sure to remove oil and water with the prep pad.. After attaching it, do not touch it with water for 2-3 hours.