All of our products are new & unused unless otherwise specified. Some packaging may have slight damage, be discolored, or be old stock packaging from the manufacturer. Please reach out with questions prior to purchasing or if there are any issues. Thanks! The ARP 200-2404 Carb Stud Kit is a high-quality performance part designed for engines. Made by ARP (Automotive Racing Products) in the United States, this kit includes black oxide coated studs with a 5/16 x 3.700" overall length and a hex nut for easy installation. These studs are perfect for adding a 2" spacer to your carburetor, providing a secure and reliable connection for improved engine performance.