Our boy is 18 ish pounds and his sister only half that. Previous tunnel was only good for the girl as it is standard size. Now they can play together in this jumbo tunnel. They love it!

My 2 cats love to play in a tunnel. This is very well made and just the right size. The larger openings make it very nice, especially for my male cat.

This seems to be a good quality product. I decided on this one because I have slippery floors and hope this fabric will not slide too much.
My cat has not been as enthusiastic as I am, but sometimes cats take a while to decide!