Heating ladder hook

I have design heating ladder in bathroom. You can put towel on it (more like fold it into it), but its not that comfortable as just hang it on the hook. I cant found any hook which would fit and will be approved by my wife. So I modeled this two hooks according to wife's wishes. It is simple, nothing fancy. Unfortunately, in the end, my wife choose the one with higher positioned hook (print plate 1), which is little bit weaker then the other one in terms of load capacity. Because of purpose, I recommend to print it with some heat resistant material (like PETG, ABS, ASA … ). I choose PETG and it works quite well.