"I read the size and I thought it would be fine. But the actual entrance and exit on both sides and in the middle are small. I think the material, inside and outside, makes it smaller than expected. I have a very small cat (3 yrs old, 8 pounds and looks fat) so its somewhat alright. He goes inside of it when he's really tired of me. LOL! But otherwise, he doesnt really play with it. But I think kittens would go WILD for this! The outside material is exactly what kittens like to touch and the inside material makes that noise a lot of kittens enjoy!"