One-size wrap-on support positions the thumb for rest or function. Wrap around thumb and wrist splint provides support to reduce pain due to combined conditions of the wrist and thumb. Ideal for mild de Quervain's, Sprains and Post-op protection. Breathable foam lined material will not shift or roll. One size fits MP circumference from 6"-9".- ThumSpica, Left (Not to be sold on any third party online store or site, such as Amazon, Walmart, etc) (To be DISCONTINUED)