Product Description: Inexspeaker rings are manufactured within Europe. They are manufactured from the best quality MDF. Thanks to the rigid construction our MDF rings guarantees best sound quality from your speakers. Our Speaker rings are already impregnated to keep them safe frommoisture. This is non-visible due to our speaker rings being treated in black dye. The speaker rings will require holes to be drilled for your speakers, these are not predrilled as different speaker manufactures have different hole locations. If you have an issue with water gathering in the vehicle, it will be necessary to add additional protection with silicone. Package Includes: - Pair of MDF speaker rings Speaker Ring Specification: - Speaker Size (mm) -200 - Mounting hole .