Short version: I bought these and returned them because they didn't fit my seat position 100%, but I ended up ordering them a second time because they're really the best option I could find. I'm happy I ordered them again, they are much better than the other solutions I tried. UPDATED REVIEW: I ordered two more of these to see if I could make them fit in my car, after they did not fit the first time. I spent months looking for a backseat extender, ideally with storage, for my car/dogs before the first time I ordered these and I was so disappointed when they didn't fit and I had to return them. After I returned these the first time, I tried using plastic storage bins in my car that I got at the hardware store, but not only were they ugly, they were so hard and slippery that my dogs didn't even lay on them anyway, so they only served half the purpose. So I kept looking and I couldn't find anything that was comparable to these, so I finally decided to try them a second time and see if I could find a compromise with my seat position. I am so happy I bought these again and even though I spent time and money trying other options, testing other storage options in my car made me realize how much better these back seat storage bins are. First of all, they look way better than anything else I could find. My car's interior is tan and the black leather on these storage bins still looks okay even though the color doesn't match my car. You can also fit a lot in them, enough to actually help you out if you get stuck somewhere. The storage bin behind my passenger seat fits 16 regular plastic water bottles (16.9 fluid ounces each), a handful of hydration powder (like powdered Gatorade), a can opener, an 8 oz container of protein powder, and a gallon Ziploc bag full of granola bars, peanut butter crackers, and trail mix, with extra space on top to lay things flat. The been behind my passenger seat fits an extra pair of women's size 7 hiking boots, 14 US dry cups of dog food (in travel containers), a stainless steel dog water bowl, two small doggy bag holders, and a thin knee length puffer coat. It sounds random but if my car ever got stuck somewhere, I would have food and water for myself and my dogs, plus a jacket and an extra pair of shoes, which could make a big difference. And the best part is that I can access all of that from the driver's seat, without having to get out and go to the trunk. Not only does the leather style look better but whatever you put in a storage bins will not be exposed to the sun, which helps if you are the type to carry extra dog food or spare water bottles in your car. It also means that people cannot look in the windows and see what is in your storage bins. Plus, the leather is much softer than a plastic bin and it's better for my dogs. When I was using the plastic bins, I had to search for dog beds that I could put over the plastic so my dogs could actually use the space, but then when I needed to get to the bins, I had to pick up the dog bed before I could get into the bin; with these, I can just lift up the lid without having to move anything or add extra layers to make my dogs more comfortable. Yes, these are kind of expensive at about $50 a piece but the closest alternative I could find is actually twice that much. They are more expensive than buying clear plastic storage bins at a hardware store like I did, but they look a lot better. Orvis has a foam back seat extender for about $80 but it has no storage; if you want these storage option, the orvis version is $100 a piece. So even though I spent more money than using plain plastic bins, this is a reasonably priced item compared to similar options. ORIGINAL REVIEW: Unfortunately, I could not keep these, as they did not fit in my car but they seemed very sturdy. For reference, I have a 2015 BMW X3 and I leave my front seats somewhat far back, enough to comfortably fit someone who is 6 ft tall in the driver's seat. These absolutely would have fit if I moved my seats forward a little or if I had a larger vehicle.