Birllaid Window Air Conditioner Side Panels Foam Insulation Installation Kit,Window Ac Side Panels,Ac Unit Window Seal 17Inch x 9 Inch x 7/8 Inch,Pack of 2 White (White)

It’s very easy to install. Just two pieces of foams and the frames that hole the foams. The foams are not too thick rather soft but feels like it should be good enough for insulation. Haven’t tested it if it can sustain a heavy wind or storm. The double sided adhesive tapes are strong and they should hold. The foams are large enough to fit my window. Be sure to measure your windows before you ordering. They do a good job insulated the gap between the air conditioner and the window frames. blocked the air from seeping through.