Cable glands, also known as cable connectors or cable fittings, are devices used to secure and seal cables entering electrical enclosures, junction boxes, or equipment. They provide a watertight and dust-tight seal around the cable entry points, preventing the entry of moisture, dirt, or other contaminants that could potentially damage the internal components or compromise the safety of the installation. Cable glands are commonly made from materials like metal, plastic, or rubber, and they come in various designs to accommodate different cable types, sizes, and environmental conditions.