The BOOT BAND is an attachment that provides the extra width you need to fit your boots!
On each side of the BOOT BAND, there are zippers and in your set, you will also receive 4 sliders. To attach the BOOT BAND, you clip one of the sliders on to each side of your boot's zippers. Then you slip on your boot, zip it - leaving enough space for your Bands. One side at a time, insert each zipper into a slider (similar to zipping a jacket) and then zip. Clip it - then zip it!
The picture shows a BOOT BAND in one view, and in another view, the BOOT BAND has been attached to the boot.