An abduction block sits between the thighs and gives the child a defined place for their legs to be. For a child whose knees drift together, or who pushes into extension and slides down the seat, it provides a stable point of contact that holds the pelvis back in the seat.
The block is shaped, so contact is spread along the inner thighs and not concentrated at one edge. It lifts out when it is not needed, which makes transfers easier and means the same chair can be used for a child who only needs the block at mealtimes or during table work.
Five sizes correspond to the chair sizes, so the block keeps its relationship to seat width and depth as the child grows.
