Features: Height adjustment: With 3 plastic lifting spacers in varied sizes included, rings can be stacked depending on the height you need for your air cleaner, offering flexibility in installation. Effective air cleaner: Expertly crafted to place air cleaners above chokes/rods, separating the air cleaner from the choke and the rods, this kit makes an ideal combination with air cleaners and carburetors. Specifications: Material: Stud: stainless steel Spacer: plastic Color: Stud: silver Spacer: black Size: Stud: about 1/4" in thread and 5" in length Spacer in 3 sizes: about 1/2", 1" and 1 1/2" Package includes: 1 x Air cleaner stud kit 3 x Air cleaner spacers Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.