Deer Blind Door Slider Window Unit, 16″ W x 11.5′ H OUTSIDE DOOR MOUNTING, TINTED GLASS X3 MODEL – gives that extra edge when it comes to looking out of your blind – Deer Hunting Blind Door Window. Aluminum Framed, Horizontal operating slide window. Twin sash slider, these units come with double strength marine grade glazing. open/close for inclement weather, excellent style for rifle blinds and shooting towers. Latch mechanism to lock the window shut.