THREE-DIMENSIONAL PROTECTION: Fibee thumb wrist brace uses two support bars that conform to the curve of the thumb, a spoon-shaped aluminum plate and an extra aluminum plate, which can effectively relieve pain in wrist and thumb, especially suitable for tendinitis, tendovaginitis, moderate to severe sprains, carpal tunnel syndrome, arthritis of the wrist, instability and functional overloading in the wrist, radial nerve palsy of hand, post-operative and post-removal of casting or splinting. ERGONOMIC DESIGN: Fibee spica thumb wrist splint uses two support bars that conform to the curve of the thumb to stabilize your thumb from the left and right sides; a spoon-shaped aluminum plate for the palm of the hand and an aluminum plate for the back of the hand to securely strengthen your wrist, which is truly 3-dimensional protection of your wrist. All support plates can be removed for easy hand washing or machine washing. SOFT AND BREATHABLE: The whole body of Fibee thumb and wrist brace is filled with soft sponge, no latex, sweat-absorbing and breathable, keeping the wrist dry and odor-free, comfortable for continuous use, reducing wrist pain, and not affecting sleep and daily activities. It will relieve any wrist pain, improve blood circulation and speed up your recovery process. The wristband can be washed and reused. EASY TO USE: All support plates conform to the physiological curve of the wrist, you only need to gently slide your palm into the wrist splint, and then tighten 4 soft straps (1 thumb strap and 3 wrist straps) with Hook&Loop to complete the wearing. If you feel the wrist fixation is too rigid, you can also remove the aluminum plate on the side at any time. Regardless of whether men or women, young people or old people, it is very convenient and simple to use. SIZE GUIDE: Please pay attention to choose left-handed or right-handed. S/M: suitable for the circumference of wrist 5”-7” 1/2”(12.5cm-19cm); L/XL: suitable for the circumference of wrist 7” 1/2”-10”(19cm-25cm). Please measure your wrist joint circumference and choose the oppropriate size.