3½" arm adds 3' extension to existing 3½" diameter poles (10-year limited warranty, 40#, Sm. Pkg.) • 4½" arm adds 4' extension to existing 4½" diameter poles (25-year limited warranty, 60#, Sm.Pkg.) • 5-9/16" arm adds 6' extension to existing 5-9/16" diameter poles (lifetime limited warranty, 87#, truck) • Galvanized steel extension arm comes with 1-5/8" diameter galvanized braces for backboard support • Existing pole top must be 125" above the playing surface to insure adjustment to 10' goal height • Includes all hardware to mount arm to pole and to backboard • 5" x 5" goal hole pattern
