Double Board Endurance Playground Systems are designed especially for busy playgrounds with space limitations. All systems feature a gigantic 6' square steel post manufactured with 1Ú4' THICK SCHEDULE 40 STEEL the strongest square post in the industry! These units feature our exclusive heavy gauge triangular extension arm and thick braces for additional board stability. Double board systems are galvanized first, then powder coated black for longer post life. System Includes One 6' square black powder coated steel post with two 5' adjustable extensions Two 42' x 60' rectangular steel backboards Two Endurance fixed rims Limited Lifetime Warranty on post, ext arms and braces