The Cloud Ping Pong nail sticker has a cute design of donuts, flower art, and a cloud-shaped French tip that emphasizes femininity.. What's Inside. Component: 1 BTS x Gelato Factory Jellymix Nail Cloud Ping Pong (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.