Patent ID: 7951052

Claim:
An exercise wheel comprising: a base having a receiving space and at least one recession formed at a bottom side of the base and facing downward; at least one hold bar connected with the base and exposed outside the base; a main wheel rotatably mounted to the base and located in the receiving space for rotation driven by an external force; an elastic member mounted between the main wheel and the base for restoring the main wheel after the main wheel is rotated; an auxiliary wheel set rotatably mounted to the base and exposed under the base, the auxiliary wheel set being connected with the main wheel to drive the main wheel for rotation; and at least one steering caster set having a caster frame and a caster, the caster frame being rotatably connected with the recession of the base and confined within the recession, the caster and the caster frame being rotatably connected with each other, wherein the recession defines a relatively narrower portion and a relatively wider portion; the caster frame comprises two ends, one of which is rotatably connected with the base and located in the recession and the other end is rotatably mounted to the caster, the caster being exposed outside the relatively wider portion and confined within the relatively wider portion for rotation relative to the caster frame.