Vibrating Tactile Calming CushionThese cushions are perfect for children with sensory processing disorders.Pressure activated pillow with 6 firm knobs on one side and ultra soft and smooth vinyl on the other. It starts vibrating as soon as you squeeze it, to turn it off, just remove pressure and the vibration stops.There are no cords, remotes, or switches to worry about, just, 2 x D batteries (included).FeaturesLength:30 cmWidth:30 cmAge Range:Suitable for 5 to 11 years