Paint brushes
Sythentic paint brushes have a soft quality to them, allowing for precision and repeated use. There are great to use for all materials, watercolour, acrylics and oil paints. Hog hair brushes are great to use for oil paints as they are stiffer and can cope with the heaviness of paint. Below are my go to brushes.
Bristlene hair brushes offer a synthetic alternative to Pro Arte's popular C-Hog Series