Wrist and forearm strengthening device

A wrist strengthening device comprising:

• a first handle;
• a second handle coupled to the first handle;
• and
• a tightening component in operable cooperation with the first handle and the second handle and configured to provide resistance to movement of the first handle and the second handle as the first handle is moved in a first direction about an axis and the second handle is moved in a second direction about the axis, opposite the first direction, the tightening component comprising an outer piece presenting a first surface, an inner piece presenting a second surface, and a male and a female portion,
• wherein the first surface includes a first angled portion having a nonzero and nonorthogonal angle relative to the axis, and wherein the second surface includes a second angled portion having a nonzero and nonorthogonal angle relative to the axis,
• wherein the tightening component is configured such that movement of the male portion toward the female portion causes space between the first angled portion and the second angled portion to decrease and friction therebetween to concurrently increase, and
• wherein the outer piece is a first outer piece, and further including a second outer piece presenting a third surface, the first and second outer pieces positioned on opposing sides of the inner piece, wherein the third surface includes a third angled portion having a nonzero and nonorthogonal angle relative to the axis, and further wherein the tightening component is configured such that movement of the male portion toward the female portion causes space between the first angled portion and the third angled portion to decrease.