Description:Material - Crafted from H65 brass , these balls are built to last, resisting corrosion from water, oil, gas, and other elements, making them reliable for long-term use.Feature - Thanks to their superior resistance to corrosion and wear, these brass bearing balls require minimal maintenance, saving you time and effort.Function - With a smooth surface finish and exact dimensions, these brass balls offer low friction and ensure smooth, efficient rotation, suitable for mechanical applications.Application - Suitable for creating bearings, valves, tumbler media, DIY decorations, jewelry, machinery, automotive parts, home appliances, and more.Specification:Material: H65 BrassOverall Size: 12.7mm in DiameterPackage Content: 40 Pcs x Bearing Balls