Size: Inner Diameter: 92.5mm / 3.64'', Diagonal Center Hole Distance: 108mm / 4.25'', Fit for Speaker Diameter: 4 Inch, Please double check the size to make sure before purchasing. Color: Blue, Black, Material: Plastic, Iron Adds extra protection to your woofers, great for car speaker. The speaker grille can decorate the speakers, and play a good dustproof effect. The car speaker grill can directly replace the old or worn one. It makes your speaker look more attractive.