Features: Featuring a patented seven flange antitheft design, these security bolts provide 90% theft deterrence with tool specific removal, ideal for safeguarding car wheels against unauthorized access. Crafted from 800MPa high strength carbon steel with vibrations resistant locking grooves, these automotive nut outperform standard aluminum alloys in durability and weather resistance. Essential for commercial fleet operators, daily commuters, and owners seeking reliability vehicle protections solution for personality or business transportation assets. Perfect for city parking lots, long trucking routes, or off road adventures where vibrations induced loosening and theft risks demand premium grade wheel security. universally compatibility across sedans, SUVs, and light trucks ensures quick installation using included tool– complete wheel set upgrade in under 5 minutes. Specifications: Component: steel wire+pp Size:Approx.3.2x2cm/1.26x0.79inch 3Option Color; Applicable scenarios: car modification Package Includes: 20pcs Wheel nut 1pc Sleeve note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.