Abstract: A strap device for retaining in coiled condition of a coiled length of slender flexible material, such as an electrical extension cord, and for hanging it for storage, comprises a length of flexible strap material attached to a buckle formed to receive opposite end portions of the strap such that a relatively large loop can be provided by one of the end portions of the strap to encircle the coiled length and a relatively small loop can be provided at a doubled back-on-itself part of the other of the end portions of the strap to receive and retain an end portion of the coiled length, a cinch slide member being variously provided for closing the loop tightly about such received end portion of the coiled length, and a suspension-hook-receiving member being provided in preferably the end portion of the strap that provides the relatively small loop.