?2 Sizes, Support Left & Right Hand?:This thumb splint is available in 2 sizes, fits right and left hand, men and women. Please measure the circumference of your wrist before purchase, size S/M fits 5-8 in (13-20 cm), size L/XL fits 8-10 in (20-25 cm). ?Our team has been specialising in finger health research for many years. We hope Weiying Thumb Splint Brace can help you and relieve your thumb pain. ?Comfortable and Soft Fabric?:The fabric of the thumb splint stabiliser support consists of three layers, the middle is filled with soft SBR material, and the inner fabric is made of skin-friendly Lycra fabric, which makes your skin feel comfortable. There are many small holes in the two layers of fabric for help breathability. It is washable and reusable, very suitable for sleeping, doing housework, playing games and working to wear. ?Better Pain Relief and Stabilising Support?:This thumb splint brace provides comfortable protection and moderate support for weak, painful or sore thumb. Great for relieving thumb pain, arthritis, tendonitis, quervain's tenosynovitis, trigger thumb, sprains, soft tissue injuries, ligament strains and carpal tunnel. It is also perfect for people with thumb joint pain caused by prolonged use of mobile phones or game consoles. ?Aircraft-Shaped Aluminum Bracket Design?: The biggest feature of this thumb support is the internal aircraft-shaped aluminum bracket. This is designed by the developers after many improvements based on the ergonomic principles of the thumb bones and tendons. The aluminum bracket is S-shaped as a whole, with two sides that resemble the wings of an airplane and are curved inward to fit the palm and back of the thumb's saddle joint to provide them with more effective support. ?Thumb Splint Brace Support?: This thumb splint spica uses an airplane-shaped 3D aluminium alloy bracket, which is carefully designed according to the shape of the thumb, metacarpal bone and wrist. It is light and thin, not easy to deform and break. The thumb brace can perfectly wrap and fix the first carpometacarpal (CMC) joint and thumb base joint, providing good stability and greater flexibility for the thumb and wrist joints.