1 — (1)zip

: Flip the fabric over to the right side and use a seam ripper to carefully remove the basting stitches, revealing your functional zipper. Quick Fixes for Common Issues

: Place the zipper face down on the open seam. Pin it in place so the teeth are centered exactly over the seam line.

: Open the fabric and iron the seam allowance flat on the wrong side.

Inserting a zipper (often called a "centered" or "standard" zip) is a fundamental sewing skill. Laurens Top Tops recommends this method for cushions, skirts, and dresses as it creates two neat layers of fabric that meet to cover the teeth.

: Rub a graphite pencil over the teeth to lubricate them and smooth out any snags.

: Using a zipper foot on your sewing machine, stitch down one side of the zipper tape. When you reach the bottom, sew across the zipper tail, then turn and sew up the other side.

Alternatively, if you were looking for information on or reclosable 1x1 plastic bags , please let me know. How to Sew a Standard Zipper

While your request could refer to a few different things, I am providing information on the most likely intent: into a piece of fabric.