Features: Experience the convenience of our 150pcs steel ball assortment. Corrosion resistant and quality, these ball ensure smooth operate for your bicycles inner part. Crafted with quality steel, our steel ball offer rusts resistance. With a variety of size available, finding the excellent fit for your project is easy. Suitable for various applications, our steel ball caterings to DIY enthusiasts and hobbyists. Enjoy performances and easy maintenance for your mechanical projects. Enhances your furniture/tackle repairs with ease use our steel ball. Their strength and durability make them suitable for rangings of projects. Stay organizes with our convenient plastic storage box, featuring multiple compartments for easy transportation. Bid goodbye to lost/misplaced ball and enjoy hassles frees maintenance and repairs. Specifications: Material: steel Package Includes: 510pcs Bearing Ball note: Please allow 1 to 3cm error due to manual measurement, please make sure you not mind before your bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.