http://www.trampolinepro.com/trampolineenclosures-c-30.html - Our Trampoline Enclosure Models are created to ensure a more enjoyable jumping expertise while also providing further safety to jumpers. This Enclosure System will fit MOST 12 Ft. Round Trampoline models from major companies as long as the diameter of the trampoline legs are less than or equal to 1.5 inches.