one stroke #4 is our brush especially for one stroke nail art. However, this brush can be used for more than that. The medium-length, strong but flexible hairs make this brush a multi-talent. Whether full cover, French or one stroke.....everything is possible......You won't want to miss this brush in your assortment! Our brushes have been designed in such a way that they are ergonomically adapted to the requirements of the nail designer's everyday work. They are easy to clean and with good care you will have a useful companion for a long time. The sensational workmanship will inspire you. We have the right brush for every modelling technique and every requirement. Our brushes are made of Toray hair and manufactured in Germany. Toray hair was developed in the 1970s as an alternative to red sable hair for the production of high-quality brushes. Toray hair is a synthetic hair consisting of polyester material - very similar to natural hair. It is more elastic and wears out more slowly than natural hair.