Practical Design. the Badge Holder has a Clear Transparent Side, Which Can Easily Scan Your Id Badge, & It Can Easily Slide Open & Hold Your Card; the Id Card Reel is Retractable, Which is Suitable for Most Id Card Sizes & is Convenient for Your Work & Life Easy to Use. You Can Press the Back Cover of the Plastic Card Holder & Push Up to Open, Putting Your Card in It, & Then You Can Hang It with the Galaxy Lanyard or Fix It with the Retractable Reel, Which Will Not Fall Off Easily, Bringing You a Nice Use Experience.