Usage Tips:Size: The size of the practical 4-way cross key is 72.22mm x 72.33mm, which is portable and compact, and can be carried in a backpack when needed. Material: Our adjustable wrench is designed as a practical four-way cross wrench, made of high-quality zinc alloy, which can achieve durable effect for long-term use. The outer layer of the key is coated with black paint, which is not easy to rust and age, you can use it with confidence Multifunction: There are four product shapes, a triangle, a key, two squares, which are widely used and not unique. Just use it according to your size and shape. Usage: Multifunctional and practical buttons are suitable for various life scenarios, such as: elevators, cabinets, water, electricity, gas and other valves. One-click multi-purpose After-sales service: If you encounter any problems during purchase or use, please feel free to contact us, we will solve your problems as soon as possible time limit. We offer free returns and refunds. Please rest assured to buy our products Very convenient and practical. It can be hung on the key ring for easy carrying. International generic key, no geographical restrictions, it can be opened as long as it matches the size and shape. Material: zinc alloy