A-szcxtop Originality U-disk Avengers Alliance Series USB Flash Drives Gifts U disk Captain America's Shield (8GB) Creative to attract people's attention,can be added to achieve the objective of giving a very strong role in advertising Function is essential for Office supplies,and portable, with high rates of exposure frequency is stronger, the advocacy role Not easily broken,long service life,increase the effectiveness of advertising; Can copy the promotion materials and videos and can do videos play automatically with the customer not delete, so can do active and passive repetition of advertising