Description This universal dimmer switch rotary knob is designed for various instruments and devices. Crafted from precision-machined plastic, it offers durability and a sleek appearance. The potentiometer knob ensures smooth and accurate adjustments, making it ideal for fine-tuning settings in audio equipment, lighting systems, and other electronic applications. Features - Color: Black -Material:Plastic - Size: 1.90X1.90X1.30cm/0.75X0.75X0.51in -Inner hole diameter:6mm -Precision adjustment: features a potentiometer knob that allows for precise adjustment of light brightness, catering to various scene requirements -User-friendly: this universal dimmer switch rotary knob instrument is simple to operate, making it convenient and quick to use -Sturdy and reliable: crafted with good plastic material, the knob is sturdy and reliable, ensuring long-term use without damage -Lighting solution: effectively addresses issues of insufficient or excessive light brightness, providing a comfortable lighting environment -Versatile applications: suitable for various settings such as homes, offices, and shopping malls, meeting diverse lighting needsPackage list: 2 x potentiometer knobs