Made with the same high quality materials as the complete replacement soft top kits, replacement windows from MasterTop are designed to provide an inexpensive replacement for those damaged rear quarter and rear windows. Each window uses a Scoop count zipper that will attach to a MasterTop replacement top (will not work on other brand tops, only MasterTop Replacement tops) simply by un-zipping the old and zipping in the new window. All are constructed of 40 mil press polished glass for long life using the same material as used on the top deck. Note that when replacing a soft top window, the fabric portion will look different from the original due to original fabric wear and tear. 3 year limited warranty.