This official size 72 x 42 rectangular backboard ismolded from fiberglass. Perimeter flange and structural rib pattern are 1 deep for rigidity and superior rebound qualities. Official perimeter and target area are screened. Threaded inserts on fan backboard mounting centers allow mounting on any standard support structure. Additional holes are provided for attachment to the Center-Strut support system. Goal mount centers 5 x 4. Backboard padding is not included but is recommended for player safety.