Features:*Made of superb material, and reasonable to use*The lock core utilizing multi-way lock principle,using a wide range of institution of mechanical abnormity, prevent lock from drilling and master key opening.*The Lock cylinder guard opposed to robbery operate efficiently stepped forward the reliability and safety of the lock,is your favor for security.Specifications:Material:AluminumMounting Hole Dia:0.4cmColour: Silver TonePackage Contents:1 x Door Lock Cylinder3 x Keys1 x ScrewNote:1. The real colour of the item could also be barely diverse from the images proven on web page attributable to many factors similar to brightness of your monitor and light-weight brightness.2. Please enable slight guide measurement deviation for the data.