Given the task definition and input, reply with output. Given an Amazon customer review, write a title for the review. The preferred titles are under fifteen words.

The concept was great and was very easy to use. However, after 3 hours of attachment, the elastic started to stretch so much that it unraveled. It was connected to the 2 rods on the headrest, no the actual headrest, so it wasn't even stretched out much. I have no idea why this happened but I can guess that the elastic made was of the cheapest quality.
Great idea but cheaply made