I bought this for my two cats and after a long wait it arrived in a huge box. It was suspicious as there was no packaging (poly bag, instructions, warnings etc) so I knew it had been used. When I unrolled the tunnel, there were black "spots" on it. At first I thought it was black glue from the factory, but when I went to clean it I found it wasn't glue. It was feces. Yes, he went into the garage. Who sends back used and disgusting stuff? What I didn't like was that it was a used item. I also didn't like that it had feces on it.