- Material and durability: made of robust die-cast zinc for high strength and break resistance, suitable for everyday use. - 4-in-1 design: combines triangle, square, round, and a pin-key in one tool to adapt to a wide range of locks and meters. - Versatile compatibility: ideal for electricity, gas or water meters, control panels, elevators, and cabinets; a universal key for craftsmen and janitors. - Compact and portable: central hole allows easy attachment to a keyring for safe transport. - Lightweight and pocket-friendly: measuring 7.1 x 7.1 cm, it fits easily in a pocket for on-the-go use. Use scenarios: - Servicing electrical, gas or water meters and nearby control panels in homes or offices. - Gaining access to elevator or cabinet panels during maintenance or inspections. - Carrying on service calls or facility rounds for quick utility and equipment access.