1. Extremely comfortable fabric: The compression sleeve is made of 100% quality fabric (copper ions 5000 PPM), offering exceptional skinfriendliness, softness, comfort, and lightweight breathability to prevent sweat and irritation. It keeps your thumb, wrist, and injured hands dry while accelerating recovery. 2. Relief of thumb and wrist pain: Provides instant relief for thumb pain and fatigue. Stabilizes and supports weakened or injured thumb joints and aching muscles. Helps alleviate pain, swelling, and inflammation caused by conditions like BlackBerry thumb, weak fingers, arthritis, ligament tears, sprained hands, tendonitis, CMC, carpal tunnel syndrome, and more! 3. stability: The foldable splint effectively stabilizes and supports the weak thumb while allowing movement of the other fingers. Ideal for injury recovery and daily activities such as texting, golfing, cycling, gaming, writing, typing, and using digital devices like phones. 4. Individual fit: Designed for universal and practical use, it has two adjustable straps for compression. With a sturdy and durable buckle, this thumb splint is versatile, functional, ensuring a good fit and maximum stability.