This pack of Bagged O-Rings includes 10 pieces made from NBR (Nitrile Butadiene Rubber) with a 70 durometer rating, ensuring excellent resistance to oils, fuels, and other chemicals. These O-rings are ideal for sealing applications in various industries, providing a reliable barrier against leaks. With precise dimensions, they fit standard fittings and connectors, making them versatile for use in automotive, industrial, and plumbing applications. The NBR material offers durability and longevity, making these O-rings a smart choice for maintenance and repair tasks.