LEVERAGE SQUAT MACHINE: This machine combines a leverage squat machine, calf raise machine, hack squat machine & leg press machine to work your hamstrings, quads, glutes, calves, and core. TAKE PRESSURE OFF YOUR LOWER BACK AND KNEES: Lower back and knee pain does not mean you can not reap the benefits of an effective squat. This powerful machine not only lets you get back to safely squatting without pain, it also maximizes the effectiveness of your squats.