Abstract: An elastic, resistance band type exercise or training device which provides a user the ability to attach or secure to various objects without the need of specific attachment devices. The elastic, resistance band type exercise or training device may comprise an outer resistance band made of an elastic or stretchable material and an inner flexible member configured to change its shape, but not stretch, when a force is applied, and maintain the changed shape until a second force is applied. The inner flexible member may be coaxially aligned with said outer resistance band. The outer resistance band may have an interior region and a length. The inner flexible member may have a length that is at least less than the length of the outer resistance band, thereby forming a resistance exercise portion and an attachment portion.