35” x 54” Fan-Shape Steel backboard is Ideal for unsupervised and urban play environments. The rebound effect of steel is the least similar to glass but the sturdiness of the material provides the strongest backboard available for rugged playground use. Backboard has a 12 gauge steel shell with white powder-coat finish and printed target and border. Keyhole slots are positioned at 20’’ vertically by 35” horizontal centers for mounting. Has reinforced mounting points, including (2) safety mount holes which reduces vibration. Compatible Mounting: Ceiling & Wall Mounted systems, Gooseneck & Straight-Arm Posts. 5” x 4 1/2” Hole Spacing. For indoor or outdoor use. 10 Year Limited Warranty.