AliMed SupraBall Chin Tuck Against Resistance (CTAR) is a method for enhancing suprahyoid muscle activity using a sustained head lift (Shaker-type) exercise. CTAR works well with elderly clients and for those with neck difficulties who are unable to do the sustained head lift. Use for isometric and isokinetic strengthening, and Jaw Opening Against Resistance (JOAR) exercises. Instructions included.