I give it one star because it does not live up to the description. This brace is for support and not for separating and rubbing between the fingers. I wasted my money even though it is not a significant amount.

I bought it based on the reviews for good support between the two small toes because I couldn't stand wearing the shoe for more than 30 minutes. As soon as I put the product on, I thought the problem was solved, but it has so many thick separators that when I put my foot in the shoe, I couldn't bear it for more than 10 minutes. The reason is that it separates the toes and essentially widens the width of the foot, causing more pressure in the shoe. If you wear it only with bare feet or with slippers, it will be fine, otherwise, it's not worth it for the reason I bought it. I cut it in half to protect only the last two toes, but then it wasn't stable and kept coming off. That's all from me, I hope I helped

The negative is that there are no sizes (or at least I didn't understand that there are) and it doesn't fit properly and securely on a slim leg.
Excellent quality and material feel.