Steel Frame (Basket) for all kinds of speakers in special styles, various sizes and finishing more than 500 models Steel Frame (Basket) for all kinds of speakers Material: low carbon steelSize: 2, 2.5, 3, 4, 5, 6, 6.5, 8, 10, 12, 15, 18, 21 Thickness: 0.4 - 1.2mmFinishing: Black, Colorized, Electroplating (Yellow Zn, White Zn, Cr, Ni)More than 500 modelsPlease contact us for full models