As a grandparent of 2 toddlers, I need a gate to block our steep stairway.  My opening was 44 inches and this gate actually fit.  You can tighten the discs so the gate is held very securely to the wall.
I have not had a chance to use it with the children in the house yet, so I could not give it a 5 star rating.
The price was so reasonable I would buy another one if I need to secure a second area.

Pros: Great price, easy set up,