Relieve Your Stress and Anxiety - The two hoops join together to provide a smooth, fluid movement. Keep your hands busy, increase finger movement, promote blood circulation in your hands, refuse to fidget, reduce anxiety, and calm your mind.Suitable for people with ADD, ADHD, anxiety, autism and more. Bicycle Chain FIDGET Toys - Bicycle Chain FIDGET Toys help people quit smoking, reduce stress levels, succeed in school, stop biting nails and picking scabs, relieve social tension at parties or gatherings...and even improve relationships.Bulletproof Design - Stainless steel split rings and links won't corrode or break, silicone O-rings provide extra texture and grip, and won't fade.Small and portable - perfect for hours of undistracted and silent fidgeting.