The IDC 321-N70R-BAG includes five high-quality NBR O-Rings, each with a 70 durometer rating, ideal for sealing applications in various environments. These O-Rings are made from nitrile rubber, known for its excellent resistance to oils, fuels, and other chemicals, making them suitable for automotive, industrial, and plumbing applications. With precise dimensions, they ensure a reliable seal that prevents leaks and maintains pressure. The bagged packaging provides convenience and organization, making it easy to store and access when needed. Perfect for both professional and DIY projects.