This is a wonderful developmental toy - babies are stimulated by cause-and-effect of the noisemakers and can learn to zip and unzip the zipper - great for the 'object permanence' learning phase! Add crinkle, rattle and squeak noisemakers to the peas to add to the fun! No zipper experience needed. I take you through each step, one by one, with full color photos. Tie Dye Diva patterns always include full-sized printable patterns that are computer drafted and color coded. DIY is great, but I don't make you draft your own patterns! Take a look at the sample pages (from a different Tie Dye Diva pattern) for an example of what is included. BASIC SKILLS NECESSARY Sew a straight line Sew a zipper (but I'll show you how!) hand stitch a small opening (but I'll show you how!) SIZING / FINISHED MEASUREMENTS Finished pod approximately 15"; peas are 3.5" diameter.