NIUNIU [High quality] Made of heavy-duty stainless steel and materials, well-made, smooth and without burrs, not easy to break or deform, and can be used for a long time [Protection of privacy] Provide security and privacy for the room, people outside the door cannot use the key to open the door, preventing strangers from suddenly visiting [Easy to install] Just put the metal part into the hole on the door, close the door, then insert the handle into the lock, no any nails or screws required, note: make sure the door opens inward [Applicable] Suitable for families, hotels, schools, apartments, short-term rentals, etc. Anti-theft locks provide security for travelers, singles, family mothers and college students Delivery Quantity: 1pc, Package Contents: Only the above package contents, excluding other products. Size: The detailed size is shown in the picture (Reminder: The size is measured manually, please allow 1-2 cm measurement error) color: red (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)