Visible Mesh Fabric: Fully enclosed tunnel design. Cube and tunnel both can be fully enclosed for use, whether indoors or outdoors, you can enjoy your cat playing! The mesh is also durable enough to withstand vigorous gaming.Self-Locking Zipper Doors: Self-locking zipper doors are set on each cube and tunnel, allowing you to arrange cubes and tunnels to your liking, as well as choose the best access point for your home for your cat.Unlimited Expansion: Use your imagination to build a cat playland! Use this mesh set to connect with other INTURN mesh play sets to create countless ways to keep your cat fresh for playtime. Foldable and Portable: Easy to store and carry product size, pop-up design, no need to assemble, it only takes 1 minute to connect the tunnel and tent to complete the construction of the game center for your cat. Multi-use Place - Great for multi-cat households, can be used indoors, gardens, parks. Comes with ground pegs for securing the play tent to the grass. Suitable for outdoor and indoor use: When outdoors, the high quality tent ventilation net allows your indoor cat or pet to be closer to nature and avoid the interference of mosquitoes; When indoors, the fence is perfect for kittens, or isolating injured pets and keeping pets in sight at all times. Lightweight and portable travel design: Can be easily folded into a convenient carrying bag, saving a lot of space, making it very convenient for camping, beach, picnic, or travel. Each tent/tunnel is secured with a zipper and is easy to remove. You can enjoy a fun time with your pet anywhere.