- Look professional, feel luxurious. A double-ended brush that makes lining and smudging so easy. The short, blunt, firm, flat-edge of this synthetic brush made of Taklon nylon applies liner with the ultimate precision. For a softer look, flip it over to smudge with the sponge tip. Create up to three different looks using one or both ends of this indispensible tool. Use brush to apply eye liner and sponge tip to smudge. Can be used to enhance eyebrows.