Spalding NBA Hercules Vertical Pole Portable Basketball System - 52" Acrylic Backboard 52" x 32" x 3.5mm acrylic backboard with 1" x 1" steel frame and 16" offset designed for durability in competitive level of play Pro-Glide lift system provides easy height adjustments from 7.5-ft to 10-ft in 6-in increments 3.5" thick vertical steel pole comes in 3 pieces for easier installation Base features 39-gallon ballast (water) and 2 wheels for portability Stylish green colored base (check inside of the base for additional parts)