X672 72" Extreme Series Basketball Hoop Tempered glass backboard is 42" x 72" and made of 3/8" competition fully-tempered glass Exclusive H-Frame design made of 1-1/2" structural steel tubing to provide precise and consistent ball response External Tension Height Adjustment Mechanism allows rim height to raise and lower 6'8" to 10' Straight 6" square one-piece steel pole with seven-gauge (3/16") wall thickness minimizes shake and aids in reducing wear and tear on joints of the system and provides a 4ft Extension from wall to front of backboard Corrosion-Resistant paint process of one primer coat and two coats of baked on acrylic-enamel provides a high-gloss finish Ground Anchor Hinge System is an exclusive Goalsetter design that enables easy installation of the goal system without the use of scaffold or ladders