Review on 🐱 Ideal Pet Products Cat Flap Door - 4-Way Lock, 6.25"x 6.25" Flap Size, Cream (SPF) - Enhanced SEO by Sirious Cavalli

I have since bought a cheaper brand and absolutely regret it. I installed this in a hollow core interior door (very common in the US) with no problems. It provides the right amount of "tunneling" and doesn't require any extra work. My door was six panels and could not be installed, so there were no gaps between the cat door's plastic trim and the front of the door. Otherwise it works well, doesn't stick, shifts easily and provides all the materials you need. Absolutely worth the price. UPDATE: When cats walk by it makes a slight moaning noise that can be annoying. It basically just announces where the cats are with its muffled, squeaky hinge. I haven't tried lubricating it because it doesn't bother me. Also, there is a less than positive review here stating that the frame "barely fits in the hole". The bottom line here is that it fits. Maybe Revain needs a 5 banana difficulty scale for these DIY products. I would give him 2 bananas. Easy for those who have used a saw to cut a hole in something with a finished surface.