The 10 foot open tunnel may be set up straight or curved for an additional challenge. It is constructed of stainless steel and durable Ripstop nylon. This is a beginner tool, and is an great way to start agility training. Agility Playsets are a great way to combine fun and exercise. Whether you're beginners or canine athletes, dog agility is a great way for you to interact and bond with your pet. These exercises provide hours of mind and body activity to promote obedience and physical health and prevent boredom! These playsets are built to the standards of the AKC with durable materials, and each component comes with easy to follow assembly instructions and training tips. They each come in a nylon carrying case that makes them easy to transport and store. Collect them all to create your own agility course.