... reel lenth:10-20cm of each 3.Connector:USB, ethernet 4.Certificate:UL,CE Brife introduction ... and so on.Name: Plastic retractable reel USB and ethernet for travelSpecification:1.Housing:ABS material ... automatic9.Certificate:UL,CE,ROHS10.Connector: ethernet,USB,iphone,ipod,and other connector you want11.Feature ... :double retractable,it’s very convenient for travel and home use12.Pack:1pc/opp bag,500 ...