* Anchor bolt mounting system * Heavy duty pole pad * Backboard measures 3/8-inch thick in glass or acrylic * Backboard offered in 60W x 38H or 54W x 36H-inches * Square pole size depends on backboard size - 6 inches or 5 inches About Spalding Founded by Boston Red Stockings pitcher A.G. Spalding in 1876, Spalding has been developing innovative products ever since. From creating the first American football, to producing the first basketball for Dr. James Naismith, to their latest advances in INFUSION technology (balls with built-in pumps), Spalding has been on the cutting edge of the sporting goods industry for well over a century. True to A.G. Spalding"s vision, the company has delivered quality goods that reflect a commitment to workmanship in every finished product, every step of the way. * Two backboard sizes offered in glass or acrylic * Steel frame with aluminum trim backboard * Flex breakaway rim with heavy duty wrap around support * White, heavy duty all-weather net * Pro elevator system adjusts rim height from 7 to 10 feet * 3 foot offset provides added play under rim * 5-inch or 6-inch square pole