... design Portable tube wood design certified usb memory stick with custom logo ,also called pen drive, memory stick or usb flash ... Relative Humidity: 20% ~ 90%, 13.Storage Relative Humidity: 20% ~ 93%, 14.Capacity:16mb, 32mb, 64mb, 128mb, 256mb, 512mb, 1gb,2gb,4gb ... other partition can be used as normal removable disk 4. Custom Icon of the disk You can have your own icon ...