Sullivans Usa Make-A-Zipper Kit, 5.5 Yds, Black

This concept is great. Move the attached heads down, cut to the length you want, no waste, works great. And you can order additional heads/pulls if needed. No more scouring the store display for the size you need. And who makes a 3 inch zipper? When finished, leave remainder on the roll and store. I can't think of a single improvement except maybe additional colors or spool made in the color of your choice.