material:aluminium alloy finish:alumina ,matt black ,satin silver ,chrome ,satin gold ...hole to hole size:96mm 128mm 160mm 224mm 256mm 288mm 320mm...screws:M4*22mm(length)hole:M4*6mm(deep)outer carton:34cm*28cm*30cmwe will grant you sepcial discount for large orders.welcom contact us copany itroduction: we are located in Foshan city ,GuangDong Province in southeast of China .our company is specialized in manufacturing ,selling aluminium alloy products for funitures&door handles and knobs.we have been in this line for more than three years ,so we have enjoy great popularity in the domestic and overseas markets .