The Freestanding Adventure Crawl Tube is great for kids to engage them in a crawling activity. Crawling helps kids develop gross motor skills. Tubes like the Freestanding Adventure Crawl Tube not only add to the physical development of your child, tubes add to the imaginative possibilities of the playground. The Freestanding Adventure Crawl Tube is a smaller playground event deigned to offer a lot of activity in a limited amount of space. The heavy-duty steel frame and plastic tube come in a huge assortment of colors for you to choose from after accepting a quote from an AAA State of Play playground specialist.