Completely attach the stand-offs to the substrate in each of the desired   locations. Insert the plastic locator into the bottom of each barrel and   align the sign against the wall in the desired location. Using a firm hand,gently press each stand-off into the wall while maintaining the proper     alignment. Once complete, set the sign aside and pre-drill holes were the  indentations were left. Remove the pladtic locator and install the         stand-offs.