The plastic is better

I bought this furniture wedges because of the recommendation of the Bauhaus-employee, although I had a good experience with plastic wedges. Two stars get the product because the furniture thereby actually stand up straight, which is a small miracle in our old apartment. Why would I still always take up flat washer-wedges made of plastic:

1. the color does not match any piece of furniture. They're all either dark brown, black or white. The plastic wedges are available in these colors. The wood would have to be painted. Who painted flat washer wedges?

2. They are rigid and are expressed by more into the ground. Floorboards and parquet flooring have followed strong dents that you can not get away without sanding.

3. You are more difficult to break than the plastic wedges.

4. They are not in different heights as the plastic wedges.

5. They are more expensive. I have for 10 pieces paid 5 euros, 20 pieces of plastic wedges cost 6.90.