Patent ID: 8617038

Claim:
An exercise apparatus comprising: a housing assembly comprising: a first housing unit and a second housing unit; an axial stem extending from the first housing unit to the second housing unit; and a tension drum having a central opening and one or more positioning holes, the tension drum rotatably mounted on said axial stem by said central opening; a first arm extending outward from the first housing unit and comprising a hollow body; an elastic member within the hollow body of the first arm, a first portion of the elastic member secured to a portion of the first arm, a second portion of the elastic member attached to the tension drum, whereby the elastic member is stretched between the first portion and second portion to provide resistance to a user during exercise; a second arm extending outward from the second housing unit and comprising a hollow body; and a retractable pin within the hollow body of the second arm, the pin configured to insert into one of the one or more positioning holes to secure the second arm member in position relative to the second housing unit.