Set up two benches (or boxes) a little wider than shoulder-width apart. Grab one heavy dumbbell with both hands at one end (shown) or a kettlebell by the handle, and stand with one foot on either bench. Keeping your chest up, lower your hips back and down into a squat until your thighs are lower than parallel to the floor. Power through your glutes to drive hips up until your legs are straight and hips are locked out at the top.
