Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: Cam tensioners work great - pretty impressed with fit and snug - did not slip. Only disappointment was that out of the 4 used - 2 had failed at the heat treatment at the ends of straps where they are cut to size at factory - that’s 50% resulted in frayed ends from straps being used the first time out - mfr needs to apply a better heat treatment to strap ends to correct this issue - good buy - but before you use the straps - hit each end up with a lighter or heat gun to seal the ends first!

Seal the strap ends before use - or they will fray