Metal caps are protective covers made from various types of metal, commonly used in packaging and sealing products. They are often found on bottles, jars, and containers, providing a secure closure to keep contents fresh and safe from contamination. Metal caps can be made from materials like aluminum or steel and are designed to withstand pressure and environmental factors. These caps come in different shapes and sizes, depending on their intended use. Some metal caps are designed for easy opening, while others require tools for removal. They are widely used in industries such as food and beverage, pharmaceuticals, and cosmetics, ensuring product integrity and safety during storage and transportation.