Hicarer 8 Pieces Fidget Toys Set Includes 4 Flippy Roller Chain And 4 Six Roller Bike Chain Toys For Adults And Teenagers In Learning Help (Red, Sky Blue, Green, Black)Features: Multiple functions: These fidget toys will help people of most ages reduce stress and anxiety. They are small and easy to carry, very suitable for offices, schools, cars, airplanes or wherever you need to calm yourself. Serviceable to play: The metal split ring and chain link will not corrode, and the silicone O ring provides extra texture and grip, so you can play them for a long time. Specifications: Material: metal, silicone Color: as