cat's tongue # 4 you can use for: classic gel brush, full cover - all-rounder Our brushes have been designed to ergonomically adapt to the demands of everyday nail design. 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.