A device includes an elongated strap, a latch structure connected to the strap and configured to receive and secure a portion of the strap within the latch structure when an end of the strap is inserted through an opening of the latch, and a clamping structure secured to the strap. The clamping structure includes a flexible ring member with two free ends that are separable from each other to define a gap between the two free ends and are further configured to be drawn toward each other such that one free end overlaps the other free end, and a locking mechanism that is operable by a user to selectively compress the ring member so as to secure a portion of at least one power cord within the ring member.