The Titan Fitness stability ball base is just what you need to add to your exercise routine. This is compatible with stability balls from 45-85 cm. When want to keep your ball in a stationary position for Swiss ball crunches, stretches, push-ups, etc., our base can help. If you have fitness bands or straps, you can attach them to the holes in the base to enhance your workout routine even more. These can include more types of resistance activities to increase your muscular endurance and muscular strength. After you’re done, you can either sit on it or keep it from rolling around in your gym or closet! Look for our 55cm & 65 cm stability balls and ball chairs!