When it comes to any kind of sewing project at all, there will be at least one haberdashery product required to aid us in achieving the results we desire. Some of the most popular haberdashery items that we sell here are our zips, which we stock in all kinds of lengths, colours and types, perfect for everything from trousers to dresses, skirts to coats, bags and even for decorative purposes as well. But what is the difference between closed end zips and Open End Zips? That question is one that we are asked frequently here at Calico Laine, usually from novice enthusiasts who perhaps just need a little help to get started. The answer is simple - a closed end will remain joined at one end even when zipped open, whereas an open end zip will unzip into two halves. This feature means that it is the correct choices for garments that need to be separated, such as coats and jackets. We stock many different kinds of Open End Zips, ranging from the more lightweight nylon to the more chunky plastic, as well as metal and brass. For sewing projects that require something really sturdy, we also carry heavy duty metal open end zips that have thick metal teeth. It is important to know what kind of open end zip your project needs, as it is not advised to have a zip that is too heavy for your chosen fabric. It is also a good idea to know what length zip you require - this is discovered by measuring the length of the teeth and not the tape that they are attached to. If you are unsure of what zip you will need but are unable to visit us in store, ask one of our friendly sales team staff members and they will be happy to help you work out what you require. It should be kept in mind that if you are hoping to replace a zip in something you already own or have made, you must replace the entire zip instead of just part of it (this also includes the zip pull). This is because every zip is manufactured ever so slightly differently, which means that parts from two different zips will not mesh together correctly and the finished result will not work properly. If you are having trouble finding a zip in the correct size or type for your project, it might be helpful to know that you can actually buy zips in a longer length and cut them down to your required size after securing the ends (we suggest using glue or sewing across the teeth to do this). Do you have any tips for using zips in your own sewing projects? Leave a comment on our Facebook page - we love to hear back from our customers!