As any high school sex-ed class will (and probably did) tell you, condoms are a great way to prevent unwanted pregnancies and/or venereal diseases -- provided said condom actually fits properly. Unfortunately, condom sizing can be a bit confusing, and most packaging gives you no way of knowing what a condom will feel like on... well, your package. in (or on) the flesh.
However, a new design concept developed by a student at the National Taipei University of Technology aims to clear up all that ambiguity by stacking the condoms, Pringle-style, in a cylindrical container that instantly gives a clear indication of how each size will feel in (or on) the flesh. They're called Love Guide Condoms, and all you've gotta do is grip the tube, then pick the size that feels just right.