The bigger, the better! The larger the diameter, the more creative freedom you have with your workouts.
On the larger sizes, you can do ab workouts, pilates, yoga - you name it! Since the mat is a lot softer than solid ground, workouts like these will be easier on your back. Added bonus: you're able to get an extra challenge due to the pliable surface of the mat!
The 49" model is most recommended to add a variety to your workouts and get the most out of your bellicon. The 44" model is our most popular size purchased for home use. The 39" model is great for its portability, but may not be large enough for a wide variety of exercises.
See the different sizes in action here!