- Look professional, feel luxurious. A small flat brush ideal for tiny spaces. The tiniest, thinnest details require this highly-specialized brush to give you the control you need. To master details such as the lines around the eyes and lips and attain maximum definition requires a high-precision tool like this short, dense synthetic brush made of Taklon nylon or Naturon. Use for any detail work in lines or around the eyes and lips. Please be aware that ingredient lists may change or vary from time to time.