The most effective, streamlined and durable brace for the relief of thumb CMC (basal joint) osteoarthritis.

Sizing: use a soft tape measure to measure the circumference of your hand just below the knuckles, excluding the thumb. 1 = 16 - 19.5cm, 2 = 19.5 - 22.5cm, 3 = 22.5 - 26 cm.