I will return the case and try to find one stronger. Produit conforme à mes attentes. I use it for stray chin & jawline hairs. My only complaint is there were no instructions included with the first cabinet, but fortunately the second box had instructions (such as they are). A little tip, after cutting to size, use a lighter to melt the ends of the belt to keep it from fraying. The reason they went back is that my toes were hurting within a few minutes. Just received this in the mail today. Other than that the product is as described and very nice And they dont fill your head with immersive sound because of not blocking everything else out. They pack a good bass response too.