Why do all the plastic cards have rounded corners?
Most, if not all, business cards have rounded corners. That’s because sharp pointy edges can potentially result in skin punctures and other injuries that are more severe than paper cuts. Since many of us like to keep our business cards close at hand, we always recommend softening the sharp corners of your plastic cards. It’s safer this way.
In addition, corner rounding gives your cards a more finished and professional look. You can also expect your cards to last longer with rounded corners as these soft edges prevent the plastic from cracking or splitting apart.