[FWB]

as much as i abhor agreeing with Patrick, i would also be very hesitant to get under the car with those, changing a tire or brakes...yes ..but sliding under...not on a bet.
for that kind of money you could almost pay for a real lift.
although i am a whimp and i am aware of my mortality, if i was 20 years old i may have no reservations sliding under my ricer with those