This High School Competition Discus Cage System features upright posts that are made from 2-1/2" (6.3cm) square, 14-gauge steel. The surrounding net is constructed from 200-lb. test, weather-treated nylon. The net is secured at ground level with stakes (included). The cage comes with steel ground sleeves, so it may be removed for storage. Vinyl-coated steel cable runs throughout the top of the net to reduce sag and ensure maximum net height. Overall mounted net height is 13' 1-1/2" (4m). Replacement net measuring 14' x 55' (4.2m x 16.6m) with same specifications also available separately. Latex free. Meets all NFHS specifications. Search High School Discus Cage for more options.