What can be said about these beautifully designed collapsible crates? I own 2. I first acquired a large collapsible & then acquired the largest collapsible that Impact makes, they also designed a wheeled platform for me, which keeps the crate off of the floor & able to be vacuumed under (not to mention the obvious: being fully moveable in-home). I love the fact that I can collapse this crate & take it with me on road-trips, thereby keeping my dog safely contained when I drop in at people's homes....wholly worry-free. These crates are escape-proof. These are truly the only crates on earth that have a containment system that satisfies me. Can't wait to procure my next crate from Impact. Thanks!!!!