Colour Family: BLACK Assembled Product Length: 9" Assembled Product Height: 6.5" Assembled Product Width: 6.5" Diameter: 6" . Used to offset double wall stove pipe toward insulated chimney DIMENSIONS: Top inner wall diameter: 6" Top outer wall diameter: 6-1/2" Bottom inner wall diameter: 5-29/32" Bottom outer wall diameter: 6-1/2" Length: 9"