1. Material: This dial needle is made of durable ABS plastic and aluminum arm. The conical diamond-shaped ceramic needle design guarantees long-term playback and perfectly interprets human voices and music. 2. Compatibility: The ruby ceramic stylus is compatible with most phonographs currently on the market. 3. High sound quality: Provide thousands of rotations to extend the playback time. Durable, longer playing time. Powerful tracking ability, dual channel (stereo), enhanced cartridge with cone stylus, providing better bass response and greater realism. 4. Convenient installation: the turntable needle is easy to install, the record needle is simple and sturdy, and it is easy to install without any tools. You can easily install the recording needle in your hand. NOTE: Item colors may differ slightly from item colors due to different lighting and screen settings. Due to manual measurements, please allow for slight size differences. Size: 18*10*5mm Shipping color: red Quantity shipped: 4 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.