Our Catnip cat enclosure tunnels are one of our most popular items. They are strong and lightweight with each complete tunnel weighing about 4.5kg. The base has a woven UV stabilised plastic mesh with an expected life span of 15 or more years. The tunnel can out through the garden, can be stepped or even ramped and can also be spanned about 4 metres without support. These cat enclosure aerial tunnels can also be installed along a fence or even up onto the roof. They are a great option to join multiple cat enclosure modules together to give your cats plenty of room for a run.