Material: Aluminum + ABSSize: 4.0 cm * 4.0 cm * 2.0 cmColor: redQuantity: 4 pcsPackage content: 4 pcs * gramophone needle1. Material: This record needle is made of durable ABS plastic and aluminum arm. The conical diamond-shaped ceramic needle design ensures long-lasting playback and perfectly interprets human voices and music.2. Compatibility: The ruby ceramic needle is compatible with most gramophones available on the market today. For example: Crosley, Ion, Numark, Bush, Sanyo, Fisher, Sony, Pyle, Philips, Gemini, etc.3. High sound quality: Provides thousands of rotations to extend playback time. Durable, longer playing time. Powerful tracking ability, dual channel (stereo), improved cartridge with conical needle, providing better bass response and greater realism.4. Easy installation: the turntable needle is easy to install, the record needle is simple and robust, and it is easy to install without any tools. You can easily install the recording needle in your hand.5. Packaging: The protective mold protects the turntable needle from damage. There are a total of 4 needle pens, the quantity is sufficient to meet your needs; compare and measure the needle you are currently using with the picture to ensure it fits your gramophone.