An elastic band to securely fasten the HDD and separate mesh pocket for USB cables and flash drives. Best in its class quality material which protects your portable hard drive disk from shock, scratches, dirt, bump and drop test upto 10 feet. Made little bigger so that you can use the HDD bag while it is inside the pouch cable attached.If you are looking for a best harddisk case for external HDD or if you looking HDD cover for portable HDD or hard disk casing for 2.5 inches this is the one you should try. Use it when hard disk it is still inside the hard disk bag, available in multiple colors to fit Your style.