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
 
Unconditional Lifetime Warranty
 
Caution: Studies have demonstrated that 42" x 72" glass backboards reduce the risk of player injury from backboard contact. BA42XL and BA42XLC are recommended for all new installations and fan-to-rectangle conversions. Bison makes 48" x 72" backboards available ONLY for replacement applications.