Two 4-way sillcock keys, each with four sizes: 6.5 mm, 7 mm, 8 mm, 9 mm. This set covers a wide range of common valves. Made from high-quality alloy steel and nickel-plated for corrosion resistance and deformation resistance, providing long-lasting durability. Slim and compact design with a total weight of 4.76 ounces. Fits easily into a bag or first aid kit and is quick to reach in emergencies. Versatile and compatible: adapts to various ball valves and is suitable for controlling water supply, radiators, electrical systems, gas fire pits, and maintenance work in trains, cabinets, or elevators. Use scenarios: - Winterize outdoor faucets or shut off home water supply during leaks or freezes. - Service gas fire pits and radiator valves. - Perform maintenance work in confined spaces or on equipment such as trains, cabinets, or elevators.