Made from nylon material. Super valuable, each pack includes 50 pcs cable ties in 5 colors(White,Yellow,Red,Blue,Green) for easy identification. Size: length about 6.3". Ideal for keeping all kinds of cords cables well; Used to tie up speaker cables, guitar cables, TV cables, microphone mic, computer cables, and much more. Can write directly onto the tag, help you know which cable is headed where and remember which cord is which, just labeled all the cables in a complex networked desktop with modems, routers, external drives, multiple printers, hubs, etc.