Underground basketball rack installation instructions
(1) Digging requirements: length 70cm * width 70cm * depth 80cm; concrete shall be filled after the basketball rack is installed. (2) The edge of the basketball frame is 60 cm from the end line of the basketball court. (3) The three points of the backboard, the basketball frame and the ring are fixed with four M12 * 60 screws. The fulcrum of the t···