Looking for a great way to strengthen your core muscles and gain balance without using heavyweights? The Pilates Resistance Ring is a perfect solution that provides light resistance while providing total body conditioning. The Pilates Resistance Ring enhances your Pilates and Yoga workouts by providing light resistance to help tone and strengthen your core and entire body.
 
The ring challenges your balance and helps your muscles to become stronger, making it great for both general conditioning and rehabilitation. Foam handles on each side make it comfortable to hold between your hands or between your feet or knees. The sturdy steel circle is covered in durable rubber, so it can withstand all of your twisting and turning while maintaining its shape. Designed for total body conditioning Strengthens core, increases flexibility, and improves balance Great for rehabilitation.
 
There are tons of routines on YouTube.  A great inexpensive way to tone up, no gym, heavy equipment or classes needed.