UNIVERSAL THUMB BRACE: Suitable for CMC joint, Broken thumb, Arthritis, Carpal Tunnel Pain, Tendinitis, Thumb and Wrist Sprain, De Quervain’s Tenosynovitis, Scaphoid Fractures, Pain of thumb extensors or abductors, Overuse injuries, Skier's thumb, Gamekeeper’s thumb. TWO SIZES FINGER SPLINTS FIT ALL FINGERS: No matter which finger is irritated by the effects of trigger finger, arthritis, mallet finger, or a broken finger, our finger support brace is adjustable. Designed with long velcro straps, two sizes in one set, our finger brace for trigger finger is guaranteed to fit on both hands and all fingers. LARGE SIZE (Height 3.34") can be worn in the index, middle and ring finger, SMALL SIZE (Height 2.7") is recommended to use in the pinky finger and thumb. BREATHABLE FABRIC & LIGHTWEIGHT: Adopting breathable fabric, skin-friendly, soft touch, comfortable, lightweight, without perspiration and any restriction. Keeping your injured thumb dry and speed up recovery. CUSTOMIZE SUPPORT LEVEL: The thumb can be kept in place thanks to these 2 aluminum bars. HARD ALUMINUM BAR, durable and sturdy, helps correct and fix the degree between the thumb and wrist, supports the thumb in place and keeps a neutral position, allows the thumb to rest by minimizing motions. SOFT SPRING BAR, provides moderate strength, retains more flexibility, holds your thumb in the right position without limiting other finger's movement, so you can complete daily tasks with ease. FIT RIGHT & LEFT HANDS: The velcro straps make it easy to wear the thumb brace and finger braces on either the right or the left hand; It is also simple to put on and take off.The thumb brace sized to accommodate most hand sizes, fully adjustable fit for wrist circumference most up to 10 inch.