Here's a collection of YKK single-slider Efron zippers. They have cotton tape. There are two types of pull tab hardware (see image 11). The tape width varies, ranging from 23-25mm, with a total of 21 zippers. They have been stored at home for a long time. They are new and unused. One zipper has a scratch on the tape. One zipper has fraying on the back. There may be other overlooked stains or scratches. Please be aware of this. The zipper length is measured from the top edge of the top hardware to the bottom edge of the bottom stopper. It's slightly shorter than 20cm. Please check the images for detailed colors and quantities. Shipping will be via Nekopos (a Japanese delivery service).