4GB USB Flash Drive USB 2.0 Memory Stick RAGNAROK ONLINE Anime Comic Game Credit Card Size Customized Support Services Ready Korean massive multiplayer online role-playing games Group vs Group Arena Combat transcendent animation collection U disk gift ideas (RO 1516) USB Flash Drive U disk Credit Card Size 4GB Memory USB 2.0 Same size as your Credit Card easy to put in your wallet Customized Support Services Ready RAGNAROK ONLINE