USB cable with four charging cables: USB, Micro USB, Mini USB, Type C, all four of which can be used simultaneously. Data transfer function with USB cable only. Could support 3 mobiles charging together. The circle ring design could attach to your key holder. Take it with you wherever you go so you can keep your devices charged. The top plastic holder and bottom cables come with many different colors, holder and cables color could mix matched. Customized logo are welcomed. 9" L x 0.5" W