Wolf, just an FYI.the parts that make up a panel install on a window wagon are as such. the panels w/window,front screw covers,back screw covers,carpet inner panel,plastic ring to fill carpet hole to window,DRIP RAIL EXTENION(generally over looked), the metal tabs that are on the body that the carpet panels hook to. The 500.00 set for sale on e-bay shows all these parts. good luck with your project. Bud