- Durable Construction : Crafted from industrial-grade nitrile rubber (NBR), these O-rings are built to withstand wear and tear, ensuring long-lasting performance. - Extensive Size Range : This set includes 32 commonly used standard sizes, with inner diameters ranging from 3 mm to 50 mm. This variety meets a wide range of project needs, from plumbing to automotive applications. - Effortless Organization : A heavy-duty storage box is included, allowing for easy storage and quick identification of O-rings by size. No more searching through disorganized hardware; everything is neatly contained. - Superior Performance : Made from high-quality NBR, these O-rings exhibit excellent resistance to oil and UV rays. Their flexible structure and ultra-thick walls provide added durability under pressure, making them ideal for high-performance applications. Applications : 1. Automotive Repairs : Perfect for sealing in vehicle cooling systems, fuel lines, and other critical components where durability is essential. 2. Plumbing Projects : Ideal for creating watertight seals in pipes and fixtures, ensuring no leaks in your household plumbing. 3. Industrial Use : Suitable for various machinery and equipment, where reliable sealing can prevent malfunctions and maintain efficiency. This comprehensive O-ring set offers reliable solutions for both professional and DIY projects, ensuring you have the right size and material to get the job done effectively.