USB Flash Pen 1.elegant design, fluent writing; 2.USB flash memory inserted in pen; 3.print or engrave logo on usb flash pen. USB Flash Memory Disk Twist Ball Pen ZM-004U:1.material: iron clip, shiny chrome or golden parts, solid brass barrel;2.high quality product with reasonable and competitive price, elegant design, smooth in writing;3.we can customize USB flash pen according to client's ...