Porous design on the back, the holder almost exposes the speakers to improve the sound quality without any block, making it louder and clearer. The owl statue crafted speaker stand is made from the ABS, which is very environmentally protective and no pollution,you can make your minds at a rest in using. The bottom silicone pad keeps the firmly in place on the table, protects table surface from scratching, and avoids slipping in smooth surface.