US Patent 7182718 Muscle exercising device

A muscle exercising device includes a body with two pivotable members pivotably connected to two sides of the body and each pivotable member has an arm connected thereto. Each of the two pivotable members has a first pressing portions and a second pressing portion, both of the two pressing portions are in contact with two outsides of a resilient member connected between the two pivotable members. A sliding member is slidably connected to the body and the resilient member is connected to and movable together with the sliding member. The users pivot the two arms to compress the resilient member to exercise muscles.