Abstract: An exercise apparatus for pull ups has two L-shaped tubes, each having a first segment and a second segment. The L-shaped tubes are mounted in parallel planes to a mounting bracket, a stabilizer bar, and a pull up bar. The first segment of the L-shaped tube is a first outer tube containing a plurality of telescoping tubes within the outer tube. The apparatus may be lowered or raised by removing the pin from the pin-holes of the plurality of telescoping tubes, sliding at least one inner telescoping tube out from, or into, an outer telescoping tube, and then inserting the pin through the through-hole of the telescoping tubes to lock the adjusted height in place.