Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Could not use product

The part received was as described, remanufactured brake calipers. It would be important to know which parts of the product are delicate and required special handling. When installing the product, a number of the bolts were too tight. In particular, when we hand fixed the caliper and it was time to perform the breathing, the breather bolt was too tight and got broken. We thought of drilling it out to use the one from the old caliper and this did not work out either. Now I have to do a new order from a different seller, because I am sure the seller wouldn't accept this back. I hate this experience because, it did not save me the money nor the time as I thought it would. I must mention i have had other products through amazon.com which have worked great, this is perhaps just one time experience.