Features High-strength Metal Shell: The metal shell provides durability and a glossy appearance, combining beauty with practicality for a professional look and feel. Efficient Waterproof Function: Professionally tested for efficient waterproof performance, ensuring higher safety and reliability in various conditions. Convenient Key Removal: The key can be easily removed in both open and closed positions, offering unparalleled convenience during use. High Temperature Resistant Base: Equipped with a high temperature resistant flame retardant base, ensuring emergency flame retardant capabilities for added safety. Compact and Portable Design: With a small size, this switch is easy to carry and store, providing convenient and reliable performance for various applications. Specification: Item Type: Key Switch Material: Stainless steel Uses: Car modification, computer modification, access control switches, CNC machine tools, industrial control instruments, etc. Working Voltage: 220VAC/DC (maximum) Working Current: 3A Gear Position: ON-OFF Installation Size: Approx. 12 x 21.5mm / 0.5 x 0.8in Size: Approx. 3mm / 0.1in 16.5mm / 0.6in 21.5mm / 0.8in 10.5mm / 0.4in 12mm / 0.5in Package List: 10 x Key Switches 20 x Keys 10 x Nuts Package List 10 x Key Switches 20 x Keys 10 x Nuts