I read through all the reviews and despite the ones warning of breaking I still ordered them because I was pleased with the idea of getting two and being able to stretch a pair of shoes at once. Well, that was a big, stupid mistake. I put one in and  began twisting to get it to the point I felt was the max strecthing I could do in the first round. IT BROKE! Just like the reviews warned. The internal structure is plastic and strips out almost immediately rendering it useless. If you are smart, you'll go with the single, sturdy shoe stretcher. Then when you get what you paid for it'll be worth it.