Description: 100% brand new and high quality. Type A:plastic frame Diameter: 139MM/5.24inch, inner diameter: 93MM/3.66inch, diagonal screw hole Center point distance: 108MM/4.25inch, height of 13mm/0.51inch shield (size error 1mm/0.04inch) TypeB:plastic frame Diameter: 200MM/7.87inch, inner diameter: 146MM/5.74inch, diagonal screw hole Center point distance: 167MM/6.57inch, the height of 13mm/0.51inch shield (size error 1mm/0.04inch) TypeC:plastic frame Diameter: 240MM/9.44inch, inner diameter: 186MM/7.32inch, diagonal screw hole Center point distance: 207MM/10.62inch, the height of 13mm/0.51inch shield (size error 1mm/0.04inch) Specification: Material: metal cold rolled steel, plastic ABS Surface treatment: high-grade spray Color: white Type:A, B, C Package Included: 1 x Car Speakers Grill Mesh Case Net Protective Case Note: Due to the hand measurement, there have size error about 1mm. Due to the difference between different monitors, the picture may not be reflecting the actual the item, please consider this before the purchase. High quality store for you!