Description Product Reviews Blue Boards make it simple to mount 66 blocks when there is no backboard at your installation site. 1/2 Blue Metal Backboard with (4) 89 Brackets 200-pair via four 66M1-50 blocks capacity backboard, equipped with four 89B brackets Accommodates (4) 66 M Blocks 20″ x 8.5″ R183A1 0 Reviews Hide Reviews Product Reviews