● Stone Type: High-Grade Natural Black Granite, Shanxi Black ● Size (approx.): 225 x 155 x 21mm ● Weight (approx.): 2kg ● Product Description: Special offer on audio boards made in our domestic factory from the highest quality natural granite, with free shipping. Black granite, due to its high specific gravity and weight among natural stones, effectively prevents vibrations from the speakers from being transmitted, resulting in a clear sound quality. Furthermore, it does not conduct electricity, so it does not pick up noise. Natural black granite creates a stylish atmosphere and a sense of luxury, making it an excellent product not only for its acoustic effects but also for upgrading your audio setup and enhancing its interior design. The top and five sides are polished to a glossy finish, while the back is a rough-sanded finish. All 12 edges are chamfered. Images from the 6th image onward are for illustrative purposes. Due to the nature of natural stone, please understand that minor chips, tiny scratches, and minute natural cracks are unavoidable. The color and pattern will vary from piece to piece, as it is a natural stone. Of course, consumption tax and packaging fees are not included. ※ If you desire multiple pieces, please inform us in the comment section.