I have a cheap/quick/dirty deer and rabbit fence around our vegetable garden. The doors are simple PVC squares with deer netting that used to attach to the fence via hooks at the top. This design turned out to be very fiddly. The new design seems much easier to manage - simply drop the door section into its slot.
ABS has worked out pretty well for me even in direct sunlight.
I designed a fun little replacement for this thing on my parents’ gate and it’s still there over 7 years later in all the weather and even intense heat over 110°F on some days.