The 1JZ/2JZ Spark Plug Tray was designed for the JZ enthusiast to help make maintenance or (racecar development), a little bit more manageable. The JZ Spark Plug Tray helps you organize your Toyota engine spark plugs. When you have a million different engine components sitting around in the garage, it's easy to lose track of certain things, especially small components like spark plugs. Specifications: The organizer tray comes in 2 sizes, a 2x4 to hold 8 spark plugs and a 4x4 to hold 16 for a full replacement. This component was printed using high-infill, ASA plastic to prevent part degradation and allow for repeated use. MK1 is capable of producing components in a variety of materials and finishes, including PET-G, PET-CF, Carbon Fiber nylon, and more. Please reach out to us using our contact page if interested. Includes: 1x 1JZ/2JZ Spark Plug Tray