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. 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. The included computer tracks count, time, and calories to help you measure progress. The seat and handle can be adjusted to fit your needs. For added convenience, the Squat Rider folds when not in use so you can easily store the unit.