I got my custom dog door for my Dog Taxi in the mail yesterday. It is easy to open and close up after my dogs enter or exti the hack. The super magnets do a good job with it. Murph will have to get adjusted to having it in place as he rides, but the opening should give him a bit of a view when it is closed. In the hot Texas summers down here, the mesh opening may offer a bit of air for him when riding.