The combination wobble and rocker board can be used to strengthen and condition the lower back, improve ankle ROM, balance, body awareness and develop joint mobility and reaction skills. CanDo® Balance Board Combo™ has handles/slots to add band or tubing. The board is durable, heavy-duty and non-skid yet lightweight and compact for portability. 16in. circular wobble/rocker board, with 2 x 1in. height, yellow MVP® instability balls.