Their pro stands, from what I remember their between 900-1100 $$
Advantages. lift from the side, you can transfer weight from front to back, you can remove the forks. you can do sag test, and suspention settings easier with it.
You can change rear shocks with it, and you do not need to jack from the foot pegs, oil pan, or exhust to get the bike in the air.
Some of them you can move the bike wile in the air.