Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Get what you pay for!

This is a small little square of foam with a velcro strap to go around your leg. This is a big joke. These type of products need to be tried on back surgery patients first. If they work for them then they would work for all. Memory foam ones don't work either. You need a sturdy foam contour one. It is hard trying to find one that works is expensive and hard to do. So I am off to find another one to try. LOL