Colour Family: BLACK Diameter: N/A . Prevents rain, snow, animals, and debris from entering your chimney Fully adjustable Ready to install All steel, welded construction Protects roof from sparks Bolt-down removable top for easy cleaning Black powder coat finish FITS THESE OUTSIDE FLUE TILE DIMENSIONS: 8" X 8" (20.3 cm x 20.3 cm) square 9" X 9" (22.9 cm x 22.9 cm) square 8" X 12" (20.3 cm x 30.5 cm) rectangle 9" X 13" (22.9 cm x 33 cm) rectangle 12" X 12" (30.5 cm x 30.5 cm) square 13" X 13" (33 cm x 33 cm) square 8" (20.3 cm) round 10" (25.4 cm) round