Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Foam Roller turns into Limp Noodle

While this product is very low-priced, one should consider the old adage, "You get what you pay for!". At first, it worked like a high quality foam roller. However, after about two weeks of usage on my upper and lower back, it lost its shape to the point where the circumference at the center of the roller was about 1/2 of the circumference at the ends. In other words, it looked like it had been stretched to point where the middle thinned. Don't buy unless you only intend to use it for a very short time.