It looks like a moutain climber type of exercise equipment. It's hard to tell cause it's sideways.
I'm familiar with this piece of equipment. It's called " A piece of crap!"
tell them to leave it on the side of the road and hope someone takes it for free.
the only good climbing machine i've used is the "jacobs ladder"
**broken link removed**
it actually auto-adjusts to your climbing speed. awesome for warming up.