Blissful relief from inflammation caused by arthritis, carpal tunnel syndrome or repetitive stress injury (RSI). Super-stretchy, skin-tone brace provides superior support at the base of your thumb, and the saddle joint between thumb and index finger. 2x 450 gauss magnets target precise pressure points for added reassurance. Comfortable, flexible and waterproof. Wear all day - whether writing, typing or washing up! Use on right or left hand. Pack of two. One size fits all.11.5 x 7cm. Not suitable for people with pacemakers.