Review on Hi-Na Backyard Zipline Kit - 80ft, 100ft, 120ft - Zip Line Set for Kids Play with Seat and Handles - Backyard Ziplines for Kids - Premium 100ft Zip Line Kit - Outdoor Zip Line Play Set (80ft) by Besim Kahsar

I installed the product and my 3 50-60 lb kids rode it once and had a great time. Then my neighbor of the same age appeared. As she began to ride, he collapsed on the leash. She hit the ground hard, took her breath away and complained of back pain. I took it home and put it on overnight. I couldn't figure out what I did wrong so I tried to fix it. Alright, when I started tightening the turnbuckle it broke again. Then I wrapped it up to send it back. Examining the turnbuckle, I noticed that it pulled the chains out where it broke, and the other end was very loose, although it was twisted most of the time. The side of the bolt has a standard thread and the turnbuckle is metric! No wonder it shattered into pieces! The girl next door has been to the ER 2 times so far and the specialist 1 time and there are many more appointments to come! I would like them to get help from the company to pay medical bills but I don't see any way to get in touch with this company.