https://www.amazon.com/dp/B01H...kCode=osi&th=1&psc=1

see pics

Allows for easy exit and protection of your RV screen door.
Adds a sturdy feel to your door and saves repairs to screens.
Adjusts from 20-1/4" to 28"
Easy installation
instructions and hardware included
Easy to use and durable

Price: $24.90

That's nice. I ordered one. now all I need is a screen door to put it on.