[According to scientific studies, cats can see a rainbow of blue, green, purple and yellow colors and a spacious tunnel with built-in wrinkle paper and soft ball toys. They also have a peephole. This popular tube offers your cat even more fun. It offers hours of training and self-enjoyment [Proven quality] Made of super strong, tear-resistant polyester, encased in a protective, high-strength memory steel skeleton (for safety). This not only protects it from scratches, but also keeps it safe while your pet is with him plays. [Foldable and portable] With the supplied elastic band, our tunnel can be folded up in seconds and easily transported and stored. Our cat tube is approximately 25.5 cm high and 84 cm long, so that with this cat tunnel both can be played freely both indoors and outdoors. [More hiding and hunting fun] Compared to other dark-colored tunnels, the colored tunnel offers your pet more play options and more interactive fun than cat tents, squares, scratching posts,