This has been near the top of my list since the beginning. My friends, family and myself have been enjoying these for years and I decided it was finally time to share the secret. The last time I started writing this pattern, I tried to make pattern pieces for each size, and then a week later new devices came out and I realized there was no way to do it without leaving someone out or constantly updating the pattern. So, I found a a way for you to use the formula that I used to create your own pattern pieces. This way it doesn't matter if your iPad or tablet or e-reader have a case on them, or you have a less common laptop size. This is a super clean, perfect corner zipper installation technique that you will learn and can apply to any top-zip bag or pouch. The open-wide feature allows you to get that super snug fit by allowing full clearance of the zipper. Make them in smaller sizes to hold embroidery or make a purse pack to hold all the little things that keep you from switching purses all the time. Box the bottom corners for a pouch will sit open wide. Skip the pocket and quilt or patchwork the cover. This is a really great, basic pattern that you will make over and over. It's fast, especially without the pocket, and you can make them for any thin device! BASIC SKILLS NECESSARY Sewing machine basics - seam allowances, stitch length & position, etc. SIZING / FINISHED MEASUREMENTS A snug fit for your device.