Description: - Made of aluminum material which is rust-proof. - Adopts multi-way lock principle, using a variety of institution of mechanical abnormity, prevent lock from drilling and key opening. - Anti-theft function effectively improve the reliability and safety of the lock. - Designed with thumb turn. - Suitable for indoor room door. Specification: - Size: (LxWxH) Approx. 7x2.9x1cm or 2.76x1.14x0.39inch - Mount Hole Diameter: 0.4cm Package Includes: 1 Piece Door Lock Core 3 Pieces Keys 1 Piece Screw Note: As different computers display colors differently, the color of the actual item may vary slightly from the above images. There is 2-3 percent difference according to manual measurement. Please check the measurement chart carefully before you buy the item. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.