Material: This children's indoor tunnel climbing toy is made from quality HDPE material, odorless and smooth, weather resistant, maintaining bright cheerful colors. The tunnel has strong load bearing capacity.Play and Skill Development: The structure of children tunnel toy is stable and supports climbing, the hollow design has multiple uses, it acts as an arch bridge or an arch ladder, which does not shaking and satable to use, provides imaginative play for children and helps improve their motor skills.The hollow design on the side of the tunnel allows light to flow through the tunnel, which also satisfies children's curiosity and explorationIndoor and Kids Outdoor Tunnels: This toddler tunnel is lightweight and easy to assemble. In warmer seasons, it can be placed in playgrounds or yards for outdoor fun; when it gets cold, it can be easily moved indoors for playing. Exercise Coordination Skills: Not only does this toy exercise a child's crawling ability and hand foot coordination skills but also brings them joy during playing. It makes an ideal gift choice for kids on birthdays, Christmas, Thanksgiving Day, Halloween or New Year.Size: 150cmx56cmx92cm/59.06inchx22.05inchx36.22inch, the 50cm large space in the tunnel allows children to crawl freely without restraint. Specification: Material: HDPE Size Chart: 150cmx56cmx92cm/59.06inchx22.05inchx36.22inch Package Includes: 1 Children Tunnel Toy Note: 1.This is not infant toy , please take away from children to avoid eating.2.Please allow slightly errors 1-2cm differences due to manual measurement.