The tool that you use to attach the springs to the mat broke. There are 2 mat loops that broke. I am getting in contact with Walmart, Amazon, and the manufacturer to see if they are willing to send me a NEW jumping mat. If I'm able to get it I will revise my review. so far, everything else is great!
Note that the loops only ripped halfway across which made the metal pieces turn sideways. I believe, that if the metal piece was solid and not having a gap in the middle, would resolve the ripping issue