Staalmeester Flat Ultimate ONE Synthetic #10
This is my favourite brush. It is amazing for large flat surfaces and you can achieve flawless results with it. As with all of the ONE Series it has the softest bristles ever! I can't recommend it enough.
The brush distinguishes itself by its high absorbing power, its high adaptability to different surfaces, and its stripe-less end-result!
100 mm (3.94 inches) brush