The stand alone unit of the Free Play Treehouse Tube is the perfect playground accessory. This crawl tube is a fun, nature theme with red ends. The detailing on the panels really makes children feel like they are crawling through a tree! This unit is intended for children ages 2-12 years old. Because this is a freestanding unit, it is perfect for any size playground. In smaller spaces, the crawl tube provides an element of fun in a limited space. In larger spaces, it adds more for children to explore, spreading them across the playground. The Free Play Treehouse Tube is sure to delight kids as they crawl through and explore.