Dealing with fuel leaks from your carburetor? These Holley transfer tube O-rings are exactly what you need to fix that pesky problem. This pack comes with two high-quality Viton seals that are specifically designed for old-style fuel transfer tubes. Viton material is seriously tough stuff - it resists fuel, oil, and heat way better than standard rubber O-rings, meaning these seals will last much longer without breaking down. Installation is straightforward (just make sure everything's clean and dry), and having two in the pack means you've got a spare for next time or if you mess one up during installation. These are genuine Holley parts too, so you know they'll fit perfectly and perform exactly as intended. No more worrying about fuel seepage or dangerous leaks around your carburetor. Whether you're working on a classic car restoration, maintaining your hot rod, or just doing routine carb maintenance, these O-rings are a must-have in your toolbox. Seriously, for such a small part, they make a huge difference in keeping your engine running clean and leak-free!