Packaging Detail: 4kg/roll, different from 3g to 7kg each spool are available.or as per customer's request. Delivery Detail ab Colors: Silver,white,black,green,orange,purple,red,yellow,etc. More than 42colors are available. Material:copperColored copper wire :Colored copper wire with high quality Flexible. So Soft, Smooth and PU coated so environmental. also PTU ,nylon,PET coated availablecolor ...