Need some small, reliable seals for a project? This pack has 250 nitrile rubber O-rings, all the same size: 3mm outer diameter, 1mm inner diameter, and a 1mm cross-section (width). Made from durable NBR (nitrile) rubber, they're flexible, have good resilience, and resist oil, air, water, and moderate temperatures. Perfect for sealing small connections in plumbing, automotive repairs, machinery, hydraulic lines, or pneumatic systems. They're soft and easy to install—just snap them into place. Great for DIYers, hobbyists, or pros working in workshops or garages. A handy, affordable assortment to have in your toolbox for whenever a tiny seal is needed.
