- Versatile Sizing: Includes 15 metric sizes ranging from 6mm O.D. to 20mm O.D., with a total of 225 O-rings neatly organized in a clear plastic storage case for easy access. - High-Quality Material: Made from non-toxic silicone, these O-rings feature a smooth surface and are environmentally friendly. They are odorless and have a shore hardness of 50A, offering excellent elasticity and resistance to temperature, ozone, and aging. - Exceptional Temperature Resistance: Functional in a wide temperature range from -30°C (-22°F) to 200°C (392°F), ensuring reliable performance in both high and low-temperature environments. - Robust Medium Resistance: These O-rings demonstrate strong resistance to detergents, salt water, engine and transmission oils, non-petroleum brake fluid, hydraulic fluids, and both vegetable and animal oils. They are also compatible with high molecular weight chlorinated aromatic hydrocarbons. - Effective Sealing: The round cross-section design creates a reliable seal between cylindrical surfaces, making them ideal for applications in engines, flanges, valves, pipes, and various cylinders. - Practical Applications: - Use in automotive maintenance to seal engine components effectively. - Ideal for plumbing projects, ensuring leak-proof connections in pipe fittings. - Suitable for hydraulic systems, providing reliable performance under pressure. These silicone O-rings are designed to meet various sealing needs and ensure durability and performance across multiple applications.