... ,16gb,32gb,1G,2G,4G,8G,16G,32G metal custom usb flash drives , 1.Size:ALL 2.color:as client request 3 ... ,hotstamping,full color printing,etcPackageBlister package,tin box,color box,white paper box, gift box,etc.SystemFree for all system except Win98(need a driver ... for Win98)Reading speed8-15MB/secWriting speed3-8MB/ ...