Hey! I'm Randolph, and I run The Paper Prototype Company.
As a designer, it's always important to get your ideas out as fast as possible. That's why sketching is so important. Also, it's pretty fun!
One annoying part of paper sketches and prototypes is drawing rectangles over and over again to represent phone screens. One day, after drawing about 50 of these phones, it dawned on me that I could save a lot of time by just printing out a bunch at once.
Pretty simple idea, but they've been really helpful to me as a designer. Would love to hear what you think! Feel free to shoot me an email at email@example.com