Got a leaky pipe, a car repair, or a DIY project that needs a reliable seal? These Othmro nitrile rubber O-rings are here to save the day. This pack comes with 10 black O-rings, each measuring 15mm in outer diameter, 10mm inner diameter, and 2.5mm in width. Made from durable NBR rubber with a 70A hardness, they’re built to handle oils, fuels, and hydraulic fluids, making them perfect for engines, faucets, flanges, valves, and general plumbing. They’re super easy to install—just pop them into place—and they provide a tight, pressure-resistant seal between overlapping surfaces. Whether you're fixing something around the house, working on your car, or tackling a hobby project, these O-rings are a handy, affordable solution. Just remember, they’re not meant for ozone-heavy environments or constant UV exposure. Keep a pack in your toolbox—you’ll be glad you did!