Short separating zipper ideal for the Porcelynne Jackie pattern metal head and metal stops. Many sports bra patterns state 8" zip needed in their list, but often those making smaller sizes will find they have to shorten the zip, so check your pattern pieces as you may find the smaller zip a better fit. Generally open-ended zips are not available less than 8", but we have had our stock specially made for us, so able to offer a shorter length as well.