Features High-strength Stainless Steel Shell: The durable stainless steel shell offers both high strength and a glossy finish, ensuring long-lasting performance and a professional appearance. Efficient Waterproof Performance: Professionally tested for efficient waterproof performance, providing reliable protection against moisture and ensuring durability in various environments. Single and Double Pull Function: With single pull, the key cannot be removed when the switch is on, while double pull allows the key to be removed when the switch is turned on and off, providing versatile functionality. Flame Retardant Base: The high temperature-resistant and flame retardant base ensures safety in emergency situations, making it suitable for various applications. Versatile Application: Suitable for car and computer modification, access control switch, CNC machine tools, and industrial control instruments, offering wide compatibility and functionality for various needs. Specification: Item Type: Key Switch Material: Stainless steel Uses: Car modification, computer modification, access control switches, CNC machine tools, industrial control instruments Working Voltage: 220VAC/DC (maximum) Working Current: 3A Level Position: ON-OFF Installation Size: Approx. 12 x 23mm / 0.5 x 0.9in 1. Single Pull: The key cannot be pulled out when the switch is turned on 2. Double Pull: When the switch is turned on and off, the key can be pulled out Package List: 10 x Key Switch 20 x Key 10 x Nut Package List 10 x Key Switch 20 x Key 10 x Nut