Don’t let a tiny leak ruin your project! This handy pack contains 100 nitrile rubber O-rings in the super common SAE size 011. The dimensions are approximately 7/16 ID x 1/16 cross-section x 5/16 OD. Nitrile is a tough, oil-resistant rubber that’s perfect for general sealing tasks on engines, faucets, air tools, hydraulic lines, and tons of DIY applications. They’re brand new, unused, and come neatly packaged. Made in Vietnam and packaged in the USA by Derby City Seal Company. These are high-quality, consistent seals that’ll fix leaks on cars, motorcycles, plumbing fixtures, and more. Keep a pack in your toolbox—you’ll be surprised how often you need one. UPC: 653466196932.