Around the windows of the Mazda MX5 NA (1989 - 1997) are several parts that protect and seal the glass from water and dirt. Consider window whiskers along the door glass, windshield wipers on the windshield, and small connectors that allow these parts to be mounted. With age and weather, these parts wear out or harden. Within the body of the car, these parts are replaced to ensure sealing and visibility.