This is exactly what I was looking for. I'm fostering 4 kittens and need to separate them from my older, much larger and grumpier 3 cats. I was initially worried that the runt kitten would be able to fit through the bars, but she can't! And it's definitely tall enough that the cats can't jump over it. The gate was easy to set up, easy to adjust, and is sturdy in my doorway. I can even still close the door behind it when needed (I have it set up to open the opposite direction).