Material: Aluminum + ABS Size: 4.0cm * 4.0cm * 2.0cm Color: Red Quantity: 4 pieces Package Contents: 4 Pcs * Phonograph Pen 1. Material: This dial needle is made of durable ABS plastic and aluminum arm. The tapered diamond-shaped ceramic needle design ensures long-term playback and accurately reproduces vocals and music. 2. Compatibility: The ruby ceramic stylus is compatible with most phonographs on the market, including models from Crosley, Ion, Numark, Bush, Sanyo, Fisher, Pyle, and Gemini. 3. Sound Quality: Designed for extended playback life. Durable construction provides longer playing time. Features strong tracking ability, dual channel stereo output, and enhanced cone pin pickups for improved bass response and realism. 4. Installation: The turntable needle is easy to install. The vinyl record needle has a simple, sturdy design that requires no tools. The pickup needle can be installed quickly and securely by hand. 5. Packaging: Each stylus is protected by a molded case to prevent damage. The package includes 4 stylus pens, providing sufficient quantity for regular use. Compare the needle dimensions with the provided image to ensure compatibility with your phonograph.