Features: brand new and high quality Designed with long-distance holes for greater use and suitability. Horn adapter only, other accessories demo in the picture are not included!Specifications:Material:ABSColor: BlackOuter Diameter:20.5cm/8.07inThread Diameter: 3.4cm/ 1.34inHeight:14cm/5.51inDiagonal Mounting Holes Distance: 19.3cm / 7.6inchQuantity: 2PcsPackage Includes:2xHorn Adaptersnote:Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. It is a high efficiency speaker horn flare. Perfect for applications where a tight coverage pattern is needed. Strong ABS material, ensures maximum breakage-resistance and durability. Specifications: Material:ABS Color: Black Outer Diameter:20.5cm/8.07in Thread Diameter: 3.4cm/ 1.34in Height:14cm/5.51in Diagonal Mounting Holes Distance: 19.3cm / 7.6inch Quantity: 2Pcs Note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 2xHorn Adapters