Material: the zipper is made of PU leather with brass zipper and alloy puller. it has great tensile strength and durability
Size Reference: 1 pair PU leather lace-in boot zipper inserts with 8 eyelets about 5.7cm/2.2 inch wide, 16.5cm/6.5 inch long, 4.5mm thick, hole: 4.5mm
Easy to Use: Just tie the shoelaces with the zipper. After that, all you need is just to zip up/down to put on/off your boots. It saves your time and effort
High Compatibility: The zipper is designed to fit all brands. Before purchase, please measure the size of eyelets' distance of your shoes to match the zipper
Function: Suitable for a variety of boots, keep the shape of the boots, protect your boots, and keep each boot in a good supporting shape. Keep it neat and beautiful to keep your shoe cabinet in order