Patent ID: 7935039

Claim:
An exercise apparatus for use on a supporting surface, said apparatus comprising: a main body having a generally circular bottom having a radially projecting lip, a top, and a handle connected to said main body and disposed in generally spaced relation with said top, said handle generally intersecting a vertical center axis projecting upward from said main body; at least one roller projecting from the bottom of said main body to enable the main body to both roll over the supporting surface and pivot about said vertical axis; a cover removably attachable in covering relation with said at least one roller, said cover having an upwardly projecting generally cylindrical wall, said wall including a pair of diametrically opposed resilient prongs adapted for engaging said radially projecting lip; said cover manually configurable between an attached configuration wherein said cover is secured to said radially projecting lip and wherein said apparatus is restricted to rotational movement relative to said cover, and a detached configuration wherein said cover is separated from said apparatus and said apparatus is able to roll freely over the supporting surface.