VEVOR Marine Trailer Guide Set, 20.5” Flexibly Adjustable Poles, Pair of Steel Anti-Rust Guides, Durable Roller Support for Ski, Fishing, or Sailboat Trailers 2024

I'm sure they are, they are a pretty common item. Google them.

Probably can get them from a auto parts store.

Replacement U-bolts should be available at most hardware stores or online..

I don't know. Maybe Google all the specs of the U-bolts and see if it gets any hits. Also, maybe contact the company that sells the guides.

No there is absolutely no one in this world that sells bolts other than this manufacture. Don’t bother checking at any hardware or trailer store because they don’t have them only Vevor does….

Nothing rolls.

No.

Too weak to hold guides. I returned it. Shoddily made.

They are 2 inches wide and about 8 inches long.

The U bolts are 7 inches long and 3 inches wide on the outside and 2 1/2 inches on the inside. I have 1 14 Jon boat and they work great for my purpose. I have an EZ Load boat trailer with tubular frame. I tried to send some pix but it will not let me load them for my response to you. Hope this helps some. Should you purchase them get the taller polls as I have a Silverado and when backing down the sloped ramp I loose visibility of the boat.

About 4” takes forever to tighten up the tension

Too weak to hold guides. I returned it. Shoddily made.

They are 2 inches wide and about 8 inches long.

The U bolts are 7 inches long and 3 inches wide on the outside and 2 1/2 inches on the inside. I have 1 14 Jon boat and they work great for my purpose. I have an EZ Load boat trailer with tubular frame. I tried to send some pix but it will not let me load them for my response to you. Hope this helps some. Should you purchase them get the taller polls as I have a Silverado and when backing down the sloped ramp I loose visibility of the boat.

About 4” takes forever to tighten up the tension