The Unger StarDuster Wall Brush is built for dusting walls, ceilings, and rough surfaces without scratching. It's made with galvanized wire and 49% horsehair bristles for heavy-duty use, and the oval shape covers a wider area per pass. Split-tipped bristles use electrostatic energy to attract and hold dust and cobwebs, and the brush attaches to Unger telescopic poles for reaching ceilings and high walls indoors or out.