The Marcy squat rider machine XJ-6334 is a light and compact squat machine that does not require weights. The squat rider machine uses three resistance bands under the seat to provide resistance during your squats, as well as using your body weight. To add resistance, simply hook the bands under the seat and to drop resistance, unhook the bands as necessary. As opposed to free-form squats with or without weights, the handle on the squat rider machine XJ-6334 ensures proper form while squatting. In addition, using the handle provides a slight workout for your arms while squatting.