Abstract: An apparatus (26) is disclosed which assists in tying a foundation reinforcing bar (18) to a reinforcing bar (24) extending through a wall of cinder blocks (12) after the wall has been constructed. The apparatus includes a low cost carrier (28) which is placed atop a block as the wall is constructed at the position where the reinforcing bars are to be tied together. The carrier carries a cable tie (40) in an open loop with the ends of the tie extending out of the wall. When the reinforcing bars are to be tied together, the ends of the cable tie are simply pulled to disengage the tie from the carrier and closed the loop about the reinforcing bars. Cement is then poured into the open cells of the wall and around the reinforcing bar. The exposed ends of the cable tie can be simply cut off and mortar used to fill the small hole through which they pass.