【Size】: The size of the practical 4-way cross key is 72.22 mm x 72.33 mm, making it portable and compact, and can be carried in a backpack if needed. 【Material】: Our adjustable key is designed as a practical four-way cross key, made of high-quality zinc alloy, which can achieve a lasting effect for long-term use. The outer layer of the key is coated with black paint, which means it does not rust or age easily, you can use it with confidence. 【Multifunction】: There are four shapes of products, 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 knobs are suitable for various life scenarios, such as: elevators, cabinets, water, electricity, gas and other valves. One click, multiple uses. 【Customer Service】: If you encounter any problems during purchase or use, please do not hesitate to contact us, we will solve your problems as soon as possible. We offer free returns and refunds. Please be assured to buy our products. Very practical and convenient. It can be hung on the key ring for easy transport. International universal key, no geographical restrictions, it can be opened as long as it matches the size and shape. Material: zinc alloy