This exercise is a great way to work the chest muscles.
Lie on your back with your legs bent. Keeping your stomach firm, hold the Pilates circle between your hands. Your shoulder blades should remain on the floor throughout the exercise.
Exhale and press the Pilates ring between your hands. As you press, bend your elbows to try to press the edges of the circle closer together. Slowly return to the start position. Repeat 8-12 times, relax, then repeat the exercise if desired.