The crawling tunnel is made with solid HDPE and PP for a stable structure.
Give your little one a stable playing area with this crawling tunnel that's suitable for daily use! Qaba Caterpillar Tunnel for Kids Climb-N-Crawl Toy Indoor & Outdoor Toddler Play Structure 73 Inch Long for 3-6 Years Old, Multicolor | Aosom Canada The large boot-shaped "feet" on the caterpillar help to hold the tunnel firmly in place while your kids play.75" L x 39.