Yes Pen is located in the biggest plastic pen industry area-tonglu town of china.we are a company combined manufacture and sourcing which specializes in promotional pens, office collection and disposable medical products, such as surgical face mask, doctor caps, surgical gown, lab coat, disposable coverall, sleeve cover, shoe cover, apron, PP bed sheet, PP pillow case, medical drape, salvia ejector and so on.Yes Pen service range:. Promotion pens Manufacturing. Promotion products sourcingand trading (Supply Chain Management). develop exclusive CustomizeddesignYaqi Service Commitment. All inquiries reply within 24hours.24 hours service line solve uquestion- no time difference issues..All orders quality controlled.Full mass production pictures, inspect report sent to clients before massproduction. We are e u eyes in factory.YES, we are best partners !