A reinforcement binder, wherein the antenna of an RF tag reader and a photo sensor detecting the rotating position of a wire reel are installed in a wire reel storage part. The photo sensor detects a mark on the wire reel, a control part decelerates or stops the wire reel when an RF tag fitted to the side face of the wire reel is opposed to the antenna of the RF tag reader, and the RF tag reader performs an RF tag recognizing operation to identify the type of a wire. Since the wire reel is decelerated or stopped and transmission/receiving are performed when the RF tag is opposed to the antenna of the RF tag reader, a stable communication canbe performed.