Sepnine Leopets 3-in-1 Pet Bike Trailer for Large Dogs - Convertible Bicycle Trailer, Jogger & Stroller | Perfect for Cycling, Jogging & Outdoor Adventures with Your Dog

I bought a previous model of this stroller 2 years ago, and there have been some updates to this new model. The fabric it is made with is not as heavy duty as my older model. If you have a pet that does NOT want to be in this stroller, they can tear through the fabric with their nails and get out. So they need to be trained to behave inside the stroller or they can tear it up in no time and escape. The fabric is similar to the canvas fold down pet crates if you are familiar with those, but perhaps a little thinner than those--so if a canvas crate will not hold your pet, neither will this. It's fine as long as your pet enjoys being in the stroller.The bottom of the stroller is just a thin plastic fabric hung from side rails with bolts. If the weight inside is too much the fabric can easily rip from these bolts. The bottom of the stroller only has a flimsy piece of plastic and there is only one metal support bar underneath towards the back side of the stroller to help support the weight inside. The older model has 3 metal bars on the underside and a heavier plastic floor, which I am more comfortable with being able to hold the sated weight. So if you have a heavier pet inside it, all the weight is just hanging by this fabric bolted to side poles. I was not comfortable that this floor design lacking support or that the thin fabric can hold the weight claimed in the item description, so I cut a piece of plywood to fit the floor to make it sturdier and distribute the weight more evenly.This model came with 2 different types of front wheels, which I did not expect as it was not in the item description. One is the bigger wheel which fixed and does not swivel so you have to kind of drive the stroller sometimes by tilting the stroller back, lifting the front wheel off the ground, when you need to make turns or curves. But I was pleased to find it also came with a small front wheel that swivels in any direction, and it steers so much better so that you do not have to tilt the stroller back to make turns. I thought I would like the swivel wheel better. However, I found that without having any weight on the front of the stroller that anytime my pet gets into the stroller from the back, the cart tips backwards over on my pet. I decided this was not safe for my pet and put the big front wheel back on. The stroller does not tip over backwards when my pet gets in and out of the stroller with the big wheel on so I will just have to deal with the tilting to steer it instead.Another difference in the old and new model, the old model has the solid clear plastic covers on the front and back of the stroller. This new model only has the solid clear plastic cover on the front of the stroller. The back side only has the netting. not a big dealBut overall it is a decent stroller and I suspect it is no less quality than the more expensive strollers of the same size. They all look just about the same in the photos in their item descriptions. I liked the older model that I bought 2 years ago and have used it a lot, it is starting to look a little worn, so I wanted to get a new one as a back up.