This is a holder for business cards that you can 3D-print on your own. It is designed with clean topology (quad faces and no hidden vertices) and is watertight. As you can see from the screenshot attached, it has been tested and works fine in Chitubox. The holder has 3 holding holes, each measuring around 10 mm wide so it can hold around 10 sheets of normal/average 3.5x2.0 business cards in each of the holding holes. The holder is about half the height of a 3.5x2.0 business card. I hope you like it and find it useful. If you have any enquiries, please do kindly feel free to reach me here. I am also open to private projects/commissions. In fact, if you see my clients' reviews here (https://www.cgtrader.com/richcontentit, see reviews in 3D projects section), you can see that I always do my best to meet and satisfy my clients' needs. I look forward to hearing from you all and thank you for your kind purchase of my products/services. Have a nice day. :)