Develop strength, speed and lean muscle tone with the Sunny Health and Fitness No. 077 Home Squat Machine. This machine promotes compound movement (two or more muscle groups working cohesively) to strengthen not only your lower body but also your shoulder, arms and back. Activating multiple groups of muscles requires more energy, so you ll burn more calories throughout your workout. Compound exercises produce consistent results. With 3 adjustable resistance bands, intensify your workout by simply adding or subtracting bands, each band adds approx. 22 Lb of resistance.