Improves rear view visibility, situational awareness and safety while using backup camera in motion Use with "always on" backup camera programmer (such as from Mid-City Engineering or Renntech) to enable camera use while driving Better visualize traffic approaching from behind, especially when cargo or rear door mounted gear obstructs rear-view mirror Installs in 5 minutes and comes with required hardware Does not produce any significant blind spot behind vehicle. Compatible with VS30 Sprinter (2019 or later) or Sprinter conversions such as Winnebago Revel or Jayco Terrain, but not Storyteller Overland. See Nexus Prints website for custom ordering option for Storyteller Overland vans.