This 280-piece assortment of star lock washers is an essential addition to any toolbox or workshop. Crafted from durable manganese steel, these retaining rings and circlips are built to withstand demanding conditions across a wide range of applications, including automotive repair, industrial machinery, furniture assembly, and medical equipment. The set includes seven size variations — M3 x 9mm (40 pcs), M4 x 12mm (40 pcs), M5 x 14mm (40 pcs), M6 x 16mm (50 pcs), M8 x 18mm (50 pcs), M10 x 20mm (40 pcs), and M12 x 25mm (20 pcs) — giving you the right fit for virtually any fastening task. The star-shaped design grips shafts securely, preventing unwanted movement and loosening under vibration or load. All pieces are neatly organized in a clear plastic storage box with individual compartments, making it easy to find the size you need and keep your workspace tidy. Whether you are a professional mechanic, an engineer, or a DIY enthusiast, this comprehensive fastener set delivers reliable performance and convenience in one compact package.