A therapeutic device includes an elastomeric outer shell configured as a human hand and defining an interior area, the outer shell having a finger end opposite a wrist end. The device includes a pocket in the interior area, the pocket being defined by an inner wall. An endplate is coupled to the outer shell and coupled to the inner wall to define a closed area between the outer shell and pocket, the endplate having an opening for allowing access to the pocket. A fill material is positioned in the closed area. The device includes a vibrating unit removably positioned in the pocket through the endplate opening, the vibrating unit having a lock complementary to a catch to couple the vibrating unit to the endplate, the vibrating unit having a vibrating motor in electrical communication with a power source and a switch.