I sell for Woofers Rainbow Germanium GL-W6 :
1 pair of aluminum  Speaker adapter rings
+
M4 fastening screws
M5 fastening screws
Washers, nuts
WITHOUT SPEAKER!
Photo N2

Rings Dimensions :
Outside diameter - 170mm
Inner diameter - 146mm
Bolt circles:
8xM4x156mm
4xM4x159mm
4x156mm for blind holes M5
Height - 40mm

ATTENTION !!!
Height - 40mm
If necessary, the height of the rings can be changed from 20 to 39mm, inform the height after purchase.

Aluminum adapter rings advantages:
- For optimal fastening of high quality loudspeakers in vehicle doors.
- Significant sound improvement.
- Reduces unwanted (vibrate, swing)

ATTENTION !!!
The other pictures are installation examples and do not belong to the action !!!

Please read the description carefully !!!
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I sell separately - matching mounting rings and rings with grills (photos N9-12)

I can make or polish the rings according to mass, ask.