Patent ID: 7867148

Claim:
A heavy bag for use in boxing, the martial arts, or other athletic exercises, the heavy bag comprising: a cover shell having an outer wall and an inner wall, the cover shell circumferential in shape defining a cylindrical chamber having a bottom wall and a securable upper end, the shell cover having a suspension means secured to its upper end for attachment to a mounting member; an internal stepped spindle positioned within said cover shell having a base member juxtaposed said bottom wall of said cover shell, said stepped spindle extending vertically upwardly therefrom towards said upper end, each step of said stepped spindle supporting a horizontal support disk, each of said support disks having an aperture corresponding to the diameter of the spindle proximate said step, said internal stepped spindle maintaining vertical integrity of said heavy bag; a plurality of modular stuffed canisters having a toroidal shape, each canister having an aperture dimension corresponding to a dimension of said stepped spindle, said modular stuffed canisters stacked on said stepped spindle within said cylindrical chamber of said cover shell, each of said modular stuffed canisters separated from said adjacent modular stuffed canister by said disk member.