The OEJA-90 oej series from Kilo International, Inc., offers a range of glossy and matte knobs in both black and clear finishes, with various shaft sizes available. These knobs are commonly used in control panels, audio equipment, and industrial machinery where tactile feedback and aesthetic appeal are important.

One thing worth noting is that these knobs are highly customizable, allowing engineers to choose between glossy and matte finishes to match the overall design of their equipment. The clear option provides a sleek, modern look, while the matte finish adds a more rugged, durable appearance. The black color is versatile and can blend well with a wide range of other components.

If you're working on a project that requires precise control adjustments and a polished look, these knobs are a solid choice. They offer good tactile response, which is crucial for user interaction, and the variety in shaft sizes means you can find the perfect fit for your application. Additionally, the availability in both glossy and matte finishes gives you flexibility in matching the knob to the overall design aesthetic of your device.