Grohe Universal Spanner for disassembly of foamers

A plastic part that self-destructs when you try to remove a diffuser.

Could not convince on quality, the plastic broke on first use. Admittedly the amateur was very calcified, but this surely happens more often; in that case you should only offer it in metal.

Versatile, but at times it is difficult to use because the bar is narrow and you can't apply enough force with your hands. Overall it remains solid and of good quality.

It does what it should.