Material and durability - Made from high-quality zinc alloy for durable, long-lasting use. Dimensions and fit - Overall size: 57 x 62 mm (2.24 x 2.44 in) - Inner triangular opening: 9 x 3 x 13 mm (0.35 x 0.08 x 0.51 in) Multifunctional tool - Versatile key designed for high-speed water meter valve keys and cabinet doors, among other uses. Why this matters - Durable construction plus compact size make it reliable for daily tasks and easy to carry. - The specified dimensions ensure compatibility with common valve keys and small panels. Use scenarios - Maintenance technician performing water meter valve operations and related tasks on site. - Facility manager quickly accessing cabinet doors, equipment panels, or service rooms. - Homeowner or DIYer keeping a single, versatile key tool for small valve and cabinet access. Performance and compatibility - Robust zinc alloy build handles routine use in utility and access applications. - Clear size specs help determine compatibility with your existing valves and doors.