The Te-Jak is a rubber holder the that fits on the end of the grip and will hold a tee. The top of the tee fits into the open end of the Te-Jak.  With the Te-Jak and tee in place, the golfer then stands upright and uses the club to push the tee into the ground the desired distance. This device was great in theory, but the golfer still needed to bend over to place the ball on the tee....  

The original box is missing its lid and the top of one individual case is missing, but all twelve Te-Jaks are present and accounted for.