With its fan-shaped steel backboard, galvanized steel pole, and zinc plated hardware, the Bison 5 9/16" Mega Duty Steel Fan Playground Basketball System was built for durability, and the goal was designed to mount through the backboard to eliminate stress when hanging occurs. Its double steel rim utilized No-Fail netlocks for added strength and minimized netlock breakage, and it can be used with either the included nylon net or a chain net. Plus, this basketball hoop features a 72" safe play area-- perfect for keeping players safe during quick and aggressive play!