Trsmima Heavy Duty Stainless Steel Zipline Spring Brake Extra Long 5.3 FT, Zipline Stopper, Kids Backyard Zip Line Spring Braking System/Stop/Stopper for 3/16 1/4 5/16 3/8 inch Wire

I got my 8 year old son a zipline for his birthday and he loves it. His 10 year old sister loves it too. I got the zipline from Hearthsong and although the zipline itself was great, the rubber stopper that came with it was horrible. Once you went down the zipline once the stopper would go all the way to the end and the next time you went down the zipline, there was a sudden stop. Huge safety hazard. We had to continually manually move that stopper after each ride to avoid anyone getting hurt. What a pain.Then I got this stopper and it works great. The coil retracts on impact and then extends back to its original length for the next ride. It slows the kids down nicely and no more manual intervention. Now they can play independently.I highly recommend this stopper with any zipline or similar ride device.In the video, you can see the stopper at the end of the ride.

Works as expected, we have used this for one season so far and we have been very pleased. Both children and adults have used this and it creates a gentle top and a nice spring back as well

Works great but bear in mind, if you're really yeeting your child(ren), 6 ft isn't long enough to keep em off the tree the zipline is anchored into. I added a 2 ft length of pvc pipe that i drilled a hole through the cap at each end and and used that to create more distance.**EDIT**. It's worth noting also that i used some massive 3/4 turn buckles that are pretty long. Overall distance from eyebolt to start of the brake has gotta be close to 10 feet. But again, im REALLY sending my kids along this line. I would also highly recommend going to e rigging for BIG drop forged 1 piece all connected eye bolts. We got some basic ones thay we thought would work from home depot but the whole thing yanked em apart

Our zipline kit (from a different manufacturer) came with a piece of thin rubber strap which did almost nothing to slow down small children, much less adults. We needed something to replace it so the zipline wasn't a swinging death trap. This did the trick almost perfectly. Slows the kids down much more gently but still plenty effectively. My only concern is that the band clamps it came with don't tighten down enough that it grips the cable, instead leaving it free to move about the length of the cable. This isn't really an issue in our case, because the brake butts up against the cable ties, which aren't moving. I would feel better if it clamped tightly to the cable, but am not even certain that was the intent based on the scant instructions, which are another minor complaint. For those reasons, I dock one star and give it a solid 4.

Our zip-line kit did not come with a spring. After the initial install we noticed that the rider would come to an abrupt stop, their bodies would swing pretty high and they'd have to hold on tight or be launched down the hill! It was fun for me but terrifying to think of my kids trying it.I ended up taking it down and ordering this product and was so happy that I did. Not only does it slow my children down it is able to slow down full grown adults and stop them safely. It was super easy to install and has taken repeated trips without showing any wear ot tear. Great product!I would also recommend ordering a seat that attaches to the handlebar. It helps the kids to keep their feet out of underbrush and takes the weight off of their hands.