bakingform silicone

Full of anticipation, I baked with my recently purchased silicone cake molds.
Unfortunately, I was very disappointed:
The long sides tilt / bulge outwards as soon as the dough is poured in. The baking result is more of an elongated muffin than a rectangular cake.
A huge disappointment, the moulds do NOT hold their shape. It does not produce the expected rectangular cake.
I would no longer buy this product knowing what I know today.

Very stable