**Product Description: Efficient and Versatile 25PCS Rotary Switch Knob Set** - **Better Control** Featuring self-locking and self-resetting action modes, these rotary switches provide easy and efficient control for your applications. - **Extensive Uses** Ideal for a wide range of applications, these switches are perfect for automation equipment, DIY projects, installations, distribution boxes, and more. - **25pcs in Total** This set includes 25 selector switches, making it easy to replace old or damaged parts and ensuring you have spares for future needs. - **Good Materials** Constructed with a flame-retardant ABS shell for reliability, and equipped with brass pins for excellent electrical conductivity. - **Easy to Install** The lightweight 16mm square knob switch is designed for easy and stable installation, enhancing user convenience. Upgrade your projects with this comprehensive set of rotary switch knobs, designed for reliability, versatility, and ease of use.