My cat does not like the part. It stinks and to the part is a bad design because the mattress base is supported by only 3 sides, the bar would be on the heater and the leverage missing stabilized. What causes it to the side parts is pressed into the gaps of my fins heating and thereby the lying surface to 70 ° slopes downward. As a substitute for the lack of bar I have the package behind the part clamped in order to stabilize the thing. I werds the day a buddy bring hope he can still ne guide rod with weld so that even in winter the thing to work properly.
I can recommend the thing under any circumstances.