Wide Application Our precision steel bearing balls can be widely used in bearings, aircraft, motors, bicycles, motorcycles, automobiles, light rails, furniture, drawer slides, door locks, and many other applications. Easy to Carry The storage box has a built-in partition space, which helps prevent rolling and mixing of different sizes. It is convenient to use and easy to carry. Ideal for keeping spare bearings on hand for bicycles or other equipment. Meet Your Different Needs 510PCS high-precision bearings in 11 different sizes to meet the needs of most common applications. With this variety, you can handle repairs at home without needing to visit a repair shop, saving time and effort. High-Quality Material All bearing balls are made of high-quality stainless steel, ensuring durability and resistance to rust. The spherical surface is polished smooth, free from cracks, burrs, and debris. When lubricated, performance is enhanced with improved corrosion and rust protection. 510PCS – 11 Sizes of Steel Balls This comprehensive set includes 510 high-precision bearings in 11 sizes, suitable for a wide range of everyday uses. Perform quick fixes at home with ease. Easy to Carry The storage box features a partitioned design to prevent rolling and keep sizes separated. Practical and portable, it allows for convenient storage and transport. Perfect for carrying spares on bicycles or for field repairs. High-Quality Material Made from high-quality stainless steel for strength and rust resistance. Smooth, polished surface ensures reliable performance. Applying lubricant helps improve smooth operation and provides additional protection against corrosion.