DescriptionThe wrist thumb brace is effectively to straighten and immobilize the wrist while protecting the thumb knuckles. for mallet thumb, broken or fractured wrist, sprained knuckles, rheumatoid arthritis, tendonitis, post stroke thumb curling, post-operative care and wrsit thumb pain relief.Features- Color: Black. - Material: Fabric and Alloy. - Size S: About 22cm(Length); 8.5cm(Left Width); 4cm(Right Width); 15.6cm(Alloy Strip Length). - Size M: About 23cm(Length); 8.5cm(Left Width); 4cm(Right Width); 17.3cm(Alloy Strip Length). - Size L: About 25cm(Length); 8.5cm(Left Width); 4cm(Right Width); 19.6cm(Alloy Strip Length). - Made of the material for your best comfort. - Adjustable design fits most people. - Help alleviate the locking, popping, bending, swelling, soreness and stiffness. - Provide great and firm support to your wrist and thumb. - Breathable and sweat absorbing.