Outer diameter 6.4 inches (163 mm), inner diameter 4.8 inches (123 mm), hole center to hole center is 5.3 inches (135 mm). It can be mounted on speakers with a height of 0.6 inches (15 mm) and outer diameter of 6.1 inches (15This item is a screw type with a spacer over the top, and the screws are 4 point fasteners. Screws to stop the grill or butyl to secure the grill net, etc. must be prepared separately.
We will respond to products with initial defects until one week of arrival