Abstract: A rehabilitation and exercise device for facilitating and limiting motion and biomechanical forces along the horizontal and vertical axes in the saggital, frontal, and transverse planes of the human anatomy. The device consists of an elongated, substantially flat platform with somewhat rounded corners (24). The platform is made of a rigid material to prevent fracturing and bending and is further supported on the bottom surface by central support spines (30) and peripheral support spines (16). The platform provides a decreased slip top surface (10) by utilizing a recessed grid (20). The bottom surface of the platform (12) is configured with a larger diameter central platform attachment extension (28) and smaller diameter peripheral platform attachment extensions (32) which have internal recesses (14) configured at a predetermined set of points to accommodate rigid, somewhat rounded pegs (18) of varying shape and diameter.