My only guess is because it is made of a cheap plastic it kept getting stuck when do the exercises.. I didn’t use it very long because that is very frustratingI am always trying to diversify my workout routine. Doing the same thing over and over can get so boring that the repitition can tempt you to quit. And lack of workout variety might also leave out muscles and tendons that your routine does not address. (For 11 years I was a certified aquatic exercise instructor., but my psychotherapy practice and book-writing demanded more of my time. ) I learned about this unique hula hoop exercise equipment, and I am so glad I did! Hula hoops are not only fun to use, but they also target those troublesome areas of your body such as your waist and balance abilities. I hope you try it.I ordered this to help with weight. It took a little getting used to. I used to use a holla hoop when I was young so it didn’t take long. Anyway so far so good my stomach seems like it’s getting tighter. My only issue is it’s loud! I wish it was cushioned maybe ?? Then I could use it when people were asleep.I love this- doesn’t feel like your exercising. My only issue is as the ball swings it’s loud as it goes around your waist. I wish it was quieter. But it’s effective! Loses a star for loudnessThis was a great tool to add to my workout room. It’s fun and I can feel the burn. It is adjustable and even fits my husbandI like it but it doesn't fit around my waist i am a plus size woman 3x to 4x and I have to put it under my breast to fit it so be mindful I ask the company can I purchase extra link they said no proceeded to say I needed to buy another Hulu hoopIt was fun! Not sure if I got more of an ab workout from laughing so hard trying to figure out how to hula hoop again at 54, or the hips and waist. ?What a fun way to work out. I love how convenient and easy it is to use. My kids even have a good time with it.