RIGHT * SIZE: 1 * WRIST 4.75 - 6 5/8 THUMB 2 - 2.25 * Measurements are based on circumference in inches * RhizoLoc is a stabilizing support * Individually shapeable aluminum strap ensures maximum stability * Velcro thumb tab allows optional adjustment of movement restriction at the base of the thumb * Velcro fastenings ensure ease of handling fitting and removal * Breathable material and air pores allow air to circulate *