A tape cartridge comprising a housing, a single tape reel around which a length of tape is wound and which is turnably held within the housing, a leader to which the beginning of the tape is secured, and a tape draw-out member by which the tape is pulled out through an opening formed in the housing into a recorder, characterized in that the leader is composed of a pin member, an elastomer clamp which is fitted around the pin member, a metal clamp fitted around the elastomer clamp, and a highly slippery member of synthetic resin placed between the elastomer clamp and metal clamp.