our normal dates. A lot of times our patterns come with a pre-set selection, but we can customize more. . Locking, WaterTight and even air-tight zippers are sometimes requested as customization features. . Meanwhile, here's a simple picture to explain the type of zippers and what they are called. Manufactoring times very based on how much work our factory has in the queue or if there are holidays and other factors. We have a lot of zippers on our products here and a lot of options for zippers. . You can always ask for a" for something via the "I'd like to customize this product" link on any page. . Keep in mnd that if you need something for a holiday, party or event, others will too and that often means we get bogged down around these times so please order early as we want you to enjoy your time and not be stressed about. We strive to hit theses dates but sometimes these things are out of our control.