Three-pack: Get a round, square and heart keyring. Fidget keyring: Get a pack of three mini push pop bubble sensory fidget keyrings. How to use: When pressed, the bubble will make a slight and satisfying popping sound. Stress reliever: A sensory fidget toy that is ideal for stress relief, anxiety and boredom. Colours: Green & White | Red & Black | Blue & White | Purple & White | Red & White. Double-sided: Flip it over and start again! | Silicone Push Pop Bubble Fidget Keyrings - Green | Wowcher