The perfect outdoor system for facilities that desire durable adjustable systems at an affordable price • These ZipCrank systems feature clear  unbreakable 3/8" polycarbonate backboards  outdoor breakaway goals  30" safe play area  removable awning style crank handle and textured black powder coat finish • 1/8" wall direct bury pole each with an easy-to-read rim height indicator • Choose from 4" square pole with 36" x 54" backboard or 5" square pole with a 36" x 60" backboard • Rim can be adjusted from 7-½' to 10'.. .