Glass insulators are devices used to support and insulate electrical wires, particularly in overhead power lines. They prevent electricity from leaking to the ground while allowing the wires to remain suspended. Made from durable glass, these insulators are designed to withstand harsh weather conditions and resist corrosion. These insulators come in various shapes and sizes, often featuring a distinctive dome shape. They are typically colored in shades of green, blue, or clear glass, which helps them blend into their surroundings. Glass insulators have been used for over a century and are still valued for their reliability and aesthetic appeal in both utility and decorative applications.