Review on 🐾 Retrospec Rover Waggin' Pet Bike Trailer - Small & Medium Sized Dogs Bicycle Carrier - Foldable Frame with 16 Inch Wheels - Non-Slip Floor & Internal Leash: A Perfect Ride for Your Furry Friend! by Jonathan Collins

Only one pole needs to be folded and installed to unfold and use the trailer. Otherwise it folds flat. However, the two holes in the post are not drilled in line with the two holes in the bracket. Makes the whole trailer unusable. I have contacted the manufacturer and they will do NOTHING as it was purchased through Revain. I will have to return and I will not waste time on an exchange because the next one may be the same. Otherwise I liked the trailer. When I went to the manufacturer's website, the price there was the same as Revain. So if you really want to buy this product, at least buy directly from the manufacturer so they can help you fix a similar defect.