Instruct: Classify Amazon reviews into positive or negative sentiment
Query: ROUND CALLUS CUSHIONS

If it weren't for these cushions, I would not be able to walk at all...without a tremendous amount of pain in the bottom of my feet. On both feet I continuously have deep hard calluses and no matter what I use to try to free myself of them, they keep coming back. They are so bad that it has become necessary for me to double the callus cushions on one foot...but at least when I do this...I can walk almost pain free.They are a godsend!