Abstract: A rolling exercise device includes a support body having a lower body portion forming four spaced apart recessed corners having respective recesses open from below and around the exterior of the corners, an upper body portion forming four interconnected corner segments overlying the four recessed corners, and a concave cavity recessed in the upper and lower body portions from a top opening defined by a continuous interior rim of the upper body portion to an interior concave bottom wall surface of the lower body portion. The device also includes mounting seats supported in the recesses of the recessed corners and rollers rotatably mounted in the mounting seats and extending below the lower body portion so as to adapt the support body to be freely rolled across a surface supporting the rolling exercise device with at least a portion of a foot of a user extending into the concave cavity.