Shock resistant ABS keyboard Built from durable ABS plastic for reliable performance and resistance to daily wear. The gray white + black finish complements any desk setup. Smooth sliding mechanism Push pull design with ball bearings for quiet and effortless operation, enabling a seamless typing motion while working. Adjustable height Four level height adjustment to accommodate various keyboard thicknesses, enhancing ergonomics and user comfort. Integrated pen holder Built in pen box for convenient storage of writing instruments and small accessories, keeping essentials within easy reach. Use scenarios Home or office desk: for daily typing tasks. Adjust the height for comfortable ergonomics and rely on the quiet sliding action to reduce desk noise. Classroom or meeting room: Keeps writing tools close at hand with the integrated pen holder while you type notes or prepare materials. Creative workflow or editing desk: Store small accessories and pens in the built in pen box, maintaining an organized workspace while you work.