Check out the gallery on Willow's blog.
The pups are so excited about this tunnel. They love it so. They can jump on top of it like a hammock or underneath the hammock part to hide and pounce out or use the actual tunnel. Each litter we have used it with has loved it. I may have to buy another before they are no more.
It is good to change things up to give them something to have fun with that is new to them.