This is another exercise that targets the triceps. You will need two light resistance bands, a PVC pipe or broomstick, and an anchor point above your head. I like to use a pull up bar.
Loop your resistance bands around the pull up bar and then place a PVC pipe, broomstick, or similar object within the free ends of the bands. Aim for the stick to be around chest-level height.
Place both hands on the stick. Keeping the elbows glued to the side of the body, push down on the stick until your arms are fully extended. You should feel this in your triceps.
Pause at the bottom and then return to the starting position ensuring that there is resistance on the bands throughout the whole movement.
This movement can also be done with a single resistance band. Loop it around the pull up bar as described above. Grab the free end with both hands with palms facing in. Perform the pushdown in the same way - staying slow and controlled with tension on the band through the entire movement.