Fofana Ninja Slider Slackline Pulley - Red Stainless Steel - Transforms Slackline into Zip String & Obstacle Course - Quick 2-Min Setup for Backyard Zipline Kits

I have purchased these before to replace on our ninja course and they are standard quality for these things which tend to wear out frequently. It is a decent price considering they have to be replaced for safety and function prob every other year and sometimes every year. They are easy to install and are a good fit as a replacement part. For safety reasons we don't try to push them beyond when they start feeling "slow" on the zipline and have been happy with the performance.

Its ok,just not as well made as we thought it would be.Dosent come with slackline or bar to hold on to.So in my opinion its really not worth the money.

******updated review******Below is my initial review but I wanted to add that when I complained to Fofana, they sent me a new pulley and offered me a full refund.Upon arrival the bearings all spun very smoothly and made for a very fast zip line ride. However, after only 2 days using the pully with the swing attachment, 3 of the bearings have stopped spinning and so the zip line is no longer zippy. The kids can pull it along but it no longer slides down the slack line as it should. Hopefully, this pully was a lemon and amazon can send us another because my kids are really dissapointed.

Great quality! We added this to a slack line kit we bought to bridge some extra space we had (and add some extra fun!). It’s nice quality and slides easily on the line. It held my husband and I well for some test slides :) Keep in mind you have to have an attachment for it (bar, ring, etc). This is just the slider itself. We just used one of the accessories from the kit we bought separately.

Great looking product and really smooth rolling at first. The kids loved it but it Lasted less than 3 hrs before rollers fell a part inside. Then barely could slide down the line.

Update: we did receive our money back even without us requesting it. So I am thankful to the customers service!It was fun while it lasted. It only lasted a week. Half the ballbearings broke after a week use, there is no way to change them so the whole slack line we also bought from Ninja fofana became useless. Very-very disappointed with the quality. Just a disclaimer - the slack line was used by two kids - both weighting less than 110 pounds, so definitely far from the weight limit. They were so happy with a home zip line and such a blow. No, don’t recommend!

Worked great on our ninja line-it was the first challenge and the kids loved zipping down to the next challenge in the line! It weathered well too so was very durable.

This is a terrible quality product. 3 of the 6 bearings stick or roll rough, even hard to turn as component shift and grind. This makes it wholly unsuitable as a zipline pulley, the kids often get stuck half way down the line.