The 13/15/18 Speed Ace Of Spades Thread-On Gearshift Knob is a practical and versatile accessory for your vehicle. Made from high-quality die-cast metal with a chrome-plated finish, it offers durability and style. Choose from three different styles: plain, skull, or Ace Of Spades Eagle. With an inside thread of 1/2 inch - 13, it fits most makes and models. The mounting adapter (UP70589) and shift knob (UP23498) are available separately. This gearshift knob is a must-have for car enthusiasts looking to enhance their driving experience.