Product name: Tweeter mounting adapter washer ring
Packaging quantity: Pack of 4
Compatible speakers: Standard-sized tweeter units (e.g., bullet tweeters)
Material: Premium engineering plastic
Overall dimensions (LxWxT): 125x65x3mm/4.92x2.50x0.12inch
Core thickness: 3mm/0.12 inches
Speaker mounting inner diameter: 40mm/1.57 inches (for securing the speaker itself)
Vehicle mounting hole dimensions: 25x6mm/0.98x0.24inch (for fixing to original vehicle panel screw holes)
Installation features: Non-invasive fitment into original vehicle locations, requiring no cutting or drilling.
Core advantages: Ultra-slim design, broad compatibility, non-invasive installation, high value for money with four-piece set.

Brief description:
Thickness is the core differentiator: The most notable feature of this product is its ultra-slim 3mm thickness. Compared to common 5mm or thicker brackets, it conceals more effectively within vehicle trim panels, achieving an invisible installation.

Two key apertures:
Inner diameter (40mm): This aperture accommodates and secures the tweeter itself.
Mounting hole (25x6mm): This aperture positions the bracket onto the vehicle's original panel via screws.