Features: This inner triangle key is designed for elevator cabinets, cabinet doors, and water meter valves, solving the need to carry multiple tools. It allows property managers and home users to handle daily maintenance tasks effortlessly. Crafted from high strength steel with precision casting, this key offers excellent wear resistance. It is ideal for professional maintenance workers who require frequent operational and long lasting durability. With a single size of approximately 57-61mm, this key can be easily stored in a pocket or tool bag, ensuring convenient access without taking up much space. It is a perfect portable tool for technicians working on the go. Designed specifically for standard inner triangle sockets, this key ensures a perfect fit every time, slipping or jamming during use. It is compatible with various models of elevator cabinets, making operational more efficient and safe. Suitable for daily maintenance in buildings and household plumbing repairs, this versatile key helps users quickly related problems. It is an essential tool for property management, construction projects, and other field applications. Specifications: Component:Zinc Alloy Size:Approx.57x61mm/2.24x2.4inch Package Includes: 5Pcs Internal Triangle Key note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.