Designed to keep errant sparks from leaving the chimney and to prevent wildlife from entering the chimney system. Fits over exterior of same size round chimney top. Easy and quick installation and removal for inspection and cleaning. Corrosion resistant diamond mesh. Brand Name: Selkirk Color: Silver Material: Stainless Steel Product Type: Spark Arrester Number in Package: 1 pk Packaging Type: Boxed Indoor or Outdoor: Outdoor Width: 8 in. Depth: 8 in.