The ONE series are Rolls Royce of the Staalmeester® brushes. 

A must have for all painters. Made from a strong synthetic fine fibre that allows for precise coverage, this brush will last a lifetime.

4 brush sizes

25mm - 1''
50mm - 2''
75mm - 3''
100mm - 4''

One by Staalmeester® series: This unique ultra-soft synthetic fiber provides the most flawless smooth application. The One collection contains a special selection of finishing and artist brushes that aren’t available in any other Staalmeester® series. The One series can be used with all types of paint, and when you properly maintain the One brushes, they retain their shape, flexibility, and softness, even after years of intensive use. These are the best for beginner painters to achieve a brush stroke free finish.