Lixada Zip Line Pulley Tandem Speed Dual Trolley 30kN Rescue Climbing Dual Pulley with Ball Bearing Rock/20KN Single Pulley Aluminum Fixed Eye Climbing Pulley

I use this item to run a sliding bag and is super easy to install and works better than I imagined.

Seems to come off the track easily.

I’d give it 5 stars if it included a quality locking carabiner that fit the trolley through the upper slot. This prevents falling if there’s a failure of the trolley, where the carabiner will ride the cable preventing an accident from happening. The trolley its self is great but like I mentioned the safety factor is missing. I have a more expensive petzl which has the right setup which I’m using for a 200’ zip line. This one is on a 50’ one that’s 7’ of the ground so for the setup it’s great. The two photos I show is how it comes and second would be a drop proof method. For a low to the ground zip line this set is a 5 star and would be for a high off the ground if they offered it with a larger carabiner to go through the top notch. I’d pay extra for that if they did.

The other reviews seemed to like it, I must have gotten a lemon I suppose. Wheel turned very smoothly with my fingers. First time my child went down it seemed to skip like it was lock up or something. Like a dirty bearing or something.Child is 60lbs.1/8” braided cable.Span: 15’

Rolls easy. Well made.