Unzipped 300D polyester folder polyester with a built-in 4000mAh power bank, micro USB input and battery indicator. This folder has a magnetic flap closure with a great branding area for your customer's logo. The folder is supplied with a large elasticated storage area and several compartments for card, phone and USB holders, a pen loop, a 20-page notebook and a flat-pack tablet stand. Perfect for keeping your educational or business items in one place.