A bundling device includes a flexible, frangible strap having a plurality of engagement teeth. Each of the teeth has a notch. A strap engagement portion is connected to the strap. The engagement portion includes flexible wings positioned in opposed relationship and a strap receiving aperture therebetween to receive the flexible strap in a first direction, the flexible wings prevent removal of the strap in an opposite second direction. A raised engagement surface extends from each of the flexible wings, opposed ones of the raised engagement surfaces operable to frictionally contact one of the teeth. The strap is loaded to break at one of the notches, and a portion of the strap is retained between the flexible wings by contact with the raised engagement surfaces.