Birch Open End Lightweight Polyester Zip is the invisible zip to use when an open end hidden zip is required for your fashion or household project. This zip can be applied with a Birch Invisible zipper foot (or Prym Invisible zipper foot). Made from high quality polyester materials, this zip is available in a variety of colours and lengths. For best results, use with Gutermann threads. Will also match Birch polyester thread colour range. Size: 18cm
