Review on Luckitty Cat Sisal Scratching Tunnel: Glow-in-the-Dark Tube with Plush Balls - Collapsible and Luminous for Small Pets like Kittens, Rabbits, and Ferrets by Gerald Duncan

Aside from that weird part in the middle that sags because there's nothing to support it. It's just a cubic fabric tunnel, and it doesn't seem like it should be a separate object, but it is. Still, he enjoys playing in it, the fabric is cute, and he loves the dangling bobble, a spiky piece that he can take or leave. After all, this is his favorite place to run and hide when the vacuum cleaner shows up. It still looks a bit weird just sitting there and not connected to anything, so I'll try to include it in his scratching post once it's built.