Designed with a Top Flex Pole Enclosure System. Net runs through the top ring to ensure maximum stability and a stronger and longer life span * Constructed with heavy duty Black-coated steel for extra durability and Ultra bounce heavy duty galvanized 8.5" springs * NO COMPLICATED HARDWARE NEEDED - The EASY ASSEMBLE/DISSEMBLE feature * High Quality Jumping Mat has 8 row stitching which provides extra security that prevents the mat from tearing and guaranteed to enjoy for many years! * Pole foam sleeves are made of strong vinyl material for added comfort and protection