1Several different specifications to choose from. High quality ink, smooth and stable, a good replacement of your old print head. 2Adopt for Bayer raw materials in Germany, high color performance and guaranteed quality. 3The high quality material guarantees the good compatibility of this product. 4The nozzle is polished without paper jam and the process is even. 5Natural color, strong reduction, and sufficient ink, sturdy and durable. Features: 1. Several different specifications to choose from. High quality ink, smooth and stable, a good replacement of your old print head. 2. Adopt for Bayer raw materials in Germany, high color performance and guaranteed quality. 3. The high quality material guarantees the good compatibility of this product. 4. The nozzle is polished without paper jam and the process is even. 5. Natural color, strong reduction, and sufficient ink, sturdy and durable. Specification: Color: Red/Light Red/Yellow/Light Blue/Blue/5PCS (optional) Product Condition: Seller refurbished Model: C9420A C9421A C9422A C9423A C9424A (optional) Compatible Printer Model: For HP Designjet 30/90R/130 series Package List: 1 x Print Head Note: Please tear off the polished card nozzle and remove the orange rubber plug before installation.