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A portable and light weight exercise device comprising an adjustable nylon strap which has a series of nylon loops along one side, that side being of a length equal to the height of a door, and the adjustable nylon strap having affixed thereto on the side opposite the side having the nylon loops, a

A portable and light weight exercise device comprising an adjustable nylon strap which has a series of nylon loops along one side, that side being of a length equal to the height of a door, and the adjustable nylon strap having affixed thereto on the side opposite the side having the nylon loops, a locking mechanism that allows for adjustment of the length of the adjustable nylon strap so that the adjustable strap may be positioned to encircle the height of the door. An elastic band is passed through a selected loop in the series of loops on the adjustable nylon strap. The user pushes or pulls the elastic band passed through a loop to exercise a wide range of muscle groups.

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[ What is claimed is:] [1.]1. A portable exercise device comprising: an elastic band and an adjustable strap, said adjustable strap comprising two sides and having a plurality of loops along one side of the adjustable strap which allows the passage therethrough of said elastic band, said adjustable

[ What is claimed is:] [1.]1. A portable exercise device comprising: an elastic band and an adjustable strap, said adjustable strap comprising two sides and having a plurality of loops along one side of the adjustable strap which allows the passage therethrough of said elastic band, said adjustable strap being of a length sufficient to allow the adjustable strap to encircle a door vertically such that said plurality of loops are positioned on one side of the door, wherein said plurality of loops are in linear series, said elastic band being passed through one of the plurality of loops, and a locking mechanism which allows the adjustable strap to be attached to a door, a locking mechanism providing a tight fit between said adjustable strap and said door by permitting said adjustable strap to be tightened about said door, said one side of said adjustable strap which has said loops comprising a short piece which is sewn onto a long piece to form said loops by sewing said long piece and said short piece together at vertically spaced locations.