Built-in support structure absorbs over 98% of the stress from goal contact without transferring it to the glass… Goal is mounted "off glass" so even excessive hanging and abuse will not cause stress • Never again be concerned about the risk of injury or inconvenience of glass breakage • All Bison competition glass backboards are pre-drilled for quick installation of original DuraSkin backboard padding.  Excellent value • Meets or exceeds all NCAA and National High School Federation rules • Predrilled for original DuraSkin backboard padding • 42" x 72" x ½" tempered glass with fire impregnated  bright white border and shooters square • Polished aluminum framework • 36" x 62" structure and 5" x 4" rim mounting pattern • 10-year limited warranty. Approx. shipping weight: 180#; Truck