Having vainly tried an original Siemens connecting frame of Siemens, I bought this very flexible version. The installation was completed within a few minutes (best course for two). The dryer holds securely on the washing machine and the glue holding so far without any problems. Maybe there are nicer more expensive variants to fix a dryer, but the duo in the storage room must not win a beauty contest with me.
Therefore, the purpose perfectly fulfilled and for a great price.