Meet the Squat Assist Row-N-Ride Trainer from Sunny Health & Fitness: a useful machine for toning your lower body with proper squats. It works your glutes, quads, and hamstrings. The machine lets you do a full-range squad and use rubber bands to adjust resistance level.
You get handle and saddle distance control to adjust the machine to your body length and perform the technique properly. This squat machine is available for under $100 at this time.