Package contains: 2 pieces of ceiling speaker grill and 8 screws.
Easy to istall: Just fix it with screws.(The iron mesh is glued together to make it more secure)
Size: The inside diameter of grille: 186mm / 7.32inch, the outer diameter of grille: 240mm / 9.45inch.High: 15mm / 0.59inch. Two screw holes center spacing: 207mm / 8.15inch.
Material: Made of metal cold rolled steel mesh and ABS, strong and sturdy, corrosion resistant and can be washed.
Application: Suitable for home theater, RV or marine.