A cable end cap is a protective cover used to seal the end of a cable, providing protection against moisture, dust, and other environmental factors. It is commonly used in various industries, including telecommunications, power transmission, and oil and gas. Cable end caps come in different sizes and materials to suit the specific requirements of the cable being protected. Heat-shrinkable cable end caps are popular due to their ability to shrink and conform to the cable shape when heated, creating a tight seal.