Abstract: This disclosure relates to a retainer strap for use in holding together and/or supporting wires, hoses, ropes, or the like. The strap comprises a head portion and a tail portion. The head portion is comprised of a section of the strap folded substantially onto itself so that two spaced-apart apertures in this portion of the strap are substantially aligned with one another. The tail portion is adapted to be inserted through the apertures in the head portion to form a loop of adjustable size. After being looped, the retainer strap may be placed in either holding or locking configurations. No tools are required to either install or lock the strap of the present invention.