Zipper Repair Solution, YKK #10 Extra Heavy Vislon Slider - Black (2 Sliders / Pack)... Fits YKK #10 Vislon Chain. Molded Slider are Lightweight yet Strong and Durable. Work on Zippers Needing to be Repaired. Color may vary on your monitor. Made in USA by YKK On back of your YKK slider is a number. Make sure it says 10V or Vislon WILL NOT WORK ON #10 COIL ZIPPERS