US Patent 9649521 Multipurpose fitness apparatus and method for assembly

A fitness apparatus and a method for assembly are disclosed. The fitness apparatus comprises a wheel assembly that includes a first circular side parallel to a second circular side, both bounded by a curved tread. Within the wheel assembly is an enclosable storage chamber. The fitness apparatus also includes an axis perpendicular to the first circular side and the second circular side, and when the fitness apparatus is in an abdominal exercise wheel configuration, at least a portion of the wheel assembly rotates around the axis. The fitness apparatus also includes a centerbore along the axis that supports a first removable handle and a second removable handle when the fitness apparatus is in the abdominal exercise wheel configuration.