Pretty, but thin, shaky and not suitable for all bags

We have acquired the bucket in three different colors for the purpose of sorting and see them - especially in contrast to each other - appealing.
Unfortunately, they are through the thin hard plastic also relatively fragile and tilt due to the unfavorable gravity to easily. Inside the bag is held by a thin metal ring - actually a good idea. In the embodiment, however, very thin, light and therefore unhelpful.

The Most Important:
The trash is being advertised for the yellow bag. However, fit yellow sacks from our region, the one usually gets free from the local disposal company, not into it, because the diameter of the bucket is above a little too big for the sack.
Since the bags clearly hardly differ at us from others, this should also apply to other yellow bags of the dual system in Germany.
"Purchased" 120 liter bags but fit.