Optimal for active play fun. Thanks to the pop-up construction, setup and takedown are quick, and the included transport bag allows for easy and space-saving storage. With the pop-up design, no poles are needed; the crawl tunnel can be set up in just a few seconds and is ready for play. Takedown is equally straightforward and fast. Children can hide in the tunnel or use it as an entrance to their play tent or play cave. When folded, the crawl tunnels have a diameter of just 46 cm, making them easy to take along in the provided transport bag for occasions like visits to friends and family, vacations, or parties for your children to play.