CMC Controller Plus Thumb Brace Adult Small / Medium Hook and Loop Strap Closure Left Hand Black - EachThumb Brace CMC Controller Plus Adult Small Medium Hook and Loop Strap Closure Left Hand Black Completely trimmable allowing customization for each individual The malleable stay hugs and lifts the head of the metacarpal while simultaneously seating the basilar joint, aiding in pain relief. The assist strap makes for simple one handed application.