There are no pulleys or brackets: you set the stand against the wall, fix it with the one screw in the box and hang the bikes on its adjustable arms. The stand itself weighs 20 pounds.
You will work overhead or at the top of a stud wall, so set the ladder on a level floor, face it and keep a hand on it while you drive the screws. Fasten the brackets into solid framing (a joist, a rafter or a stud), never into drywall alone, and read the instructions in the box first.