This item is wrist thumb support, which has been designed for the treatment of thumb ligament injuries, wrist sprains, repetitive strain injuries, carpal tunnel syndrome and rheumatoid/osteoarthritis arthritis. This thumb support can be used for a variety of thumb injuries and conditions and is for people who need support for the thumb but still need to remain active, but please consult your doctor if you are in any doubt. Features - Color: Black. - Material: SBR. - Size: About 20x13x2cm/7.9x5.1x0.8 inch. - Made of material for long time and durable use. - It has a simple design, but very practical in use. - Comfortable to wear without restricting finger movement. - Good for thumb ulnar lateral ligament tear, thumb joint sprain or strain, chronic trigger finger and broken thumb protection and recovery. - Easy to wear and take off, bring much convenience to you.