for Bench dips,
you need to place
a bench behind your back.
Placing hands on edge of bench,
position feet away from bench,
straightens arms,
slide rear end off
of edge of bench,
and rest heels on floor
with legs straight
during execution,
lower body by bending arms
until slight stretch is felt
in chest or shoulder,
or rear end touches floor.
Raise body and repeat
the same steps.