The Glassman wedge, designed for frameless window vehicles, is an essentialaccessory for any professional. Using built in LEXAN sheets around wedge shapedhard rubber, the Glassman creates a place to insert your long reach tool. Sinceit requires less space to insert into the tool, there is less chance that awindow can explode. Spreading the pressure evenly over a wider area ensuresless damage to the vehicle.There is a quick instructional manualincluded or an online access codeincluded with the kit that provides quick, expert training on the proper use ofthe included tools. Designed for frameless window vehicles Lexan sheets Never damage a glass window again