SIT AND TWIST FOCUS AID

원문 (중국어)

A sit and twist device includes a rotatable member and a cushion. The rotatable member has an upper member, a lower member, and a spinner positioned between the upper member and the lower member. The upper member is rotatable relative to the lower member. The cushion is coupled to an upper surface of the upper member. The upper member includes a plurality of downwardly extending stops and the lower member includes a plurality of upwardly extending stops. The stops abut one another when the spinning member is at the end of the range of rotation, which is less than 360 degrees.