Abdominal trainer for losing weight

Hello friends of Hulla hoop. The mating of the tire is simple, but the insertion of the balls requires some strength and dexterity of fingers. But to create. Through daily exercise (about 10 minutes) and waiver of sweets I was able to notice a toning the abdominal area after a week. He has also become somewhat flatter. I feel more comfortable, because this has always been my problem area, although I'm not fat otherwise. I was amazed that one can find such a tangible result with little effort and little time. One must remain but tuned! The quality is okay, there are so far no damages caused by the workout. And I think this is also another owner endure, if I want to step up the training by a heavier tire. Since the exercises after a while have become very one-sided. Here's my tip: the tire swing around to the right. This is a completely new feeling and requires more concentration, skill and strength. I think this is because the left and right is controlled by the brain (such as writing). Did this not researched - it may just tell me so. The so often mentioned bruises I could not find me. I would purchase this tire again at any time and would recommend it to all new friends of Hulla Hoop. Have fun with it.