This is a two-part strap that positions the thumb for function and control of muscle tone. Use the 3pp ThumDuction Thumb Function Strap to control mild to moderate hypertonicity (spasticity) or to position the thumb for function for persons with weakness due to stroke (CVA) or paralysis. The strap can also be used to lessen symptoms of tendinitis. Its two-part design makes it easy to position the thumb away from the palm to control tone or aligned under the thumb to improve pinch. Soft, breathable foam-lined material resists slipping and provides gentle control. This is a light control splints that supports through light compression and contoured designs to protect the joints. The light control is ideal for daytime use at work and at home and for use in sports and active leisure time activities.