I used ziplock bags to store my needles. I saw that they were on sale and bought enough for each circular needle size 0-13. I only had one pack that wouldn't close. I bought an extra one so it didn't bother me that one of them didn't work properly. I cut out a bow tie from washi tape for each bag and wrote the size of the needle on the bag with a felt pen. I keep them in order in a big bag. Binding holes are approximately 3.25 inches from the outside edge of each hole. Another reviewer here said 3 inches and 1/8 and that is correct from center of hole to center of hole. I don't use them in a folder because I like the pocket I already had for my brochures. These plastic storage boxes are durable and beautiful. Much nicer than zippered storage bags.
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