My application required two belts side by side connecting two double pulleys. When I installed the two identical belts, one was loose and the other was tight. Looking closely at the belts, one was slightly narrower than the other. I still gave them 3 stars because $2.50 was a great price.

I needed belts for a key piece of equipment in my manufacturing process, but I never purchased these types of belts before. So, I was clueless. I called the customer service phone number and they were extremely helpful. I ordered the 1st belt size they recommended but it was too small. I called back and they sent me replacements for FREE. Unfortunately those were too small too (based on my measurements). The 3rd time I called and ordered 2 different sizes and I found the perfect fit! The shipping was fast as well. I highly recommend this company.