Review (5/5): They're doing the trick!
These work really well for their purpose. Another reviewer had suggested putting powder on them before wearing, and this works really well. I use plain corn starch (or corn flour if you're British). These are very soft and helpful for cushioning my large bunions and separating my big toe from the next one over.
There had been a misunderstanding with my order, but the seller wrote back immediately and offered to send me another pair free of charge. Note, they don't mean you get two pairs - you get two separators - one for each foot. That wording needs to be changed on the description. But heck, they're so cheap anyway it's worth it to just buy an extra set.