WE CAN ADJUST THE SIZE OF THE SPEAKER HOLE DIAMETER BEFORE WE SHIP THEM TO SUIT YOUR SPEAKERS
THESE ARE MADE FROM SOLID 5MM THICK PLASTIC SO THEY ARE VERY STRONG AND CAN BE DRILLED ETC WHEN YOU FIT YOUR SPEAKERS
WE ALSO INCLUDE 6 BOLTS TO FIT INSIDE THE FACTORY HOLES.
THESE ARE GREAT FOR UPGRADING FROM A FACTORY 4 SPEAKER SYSTEM TO A 6 SPEAKER SYSTEM
