High-quality materials: sturdy construction for extended service life. Stylish and elegant design. Wide range of applications: Easy-to-install door handle with lock and keys, suitable for home or business use, such as bedrooms, schools, shopping malls, apartments, and offices. Specifications: Product Name: Indoor Door Lock Key Type: Mechanical key Suitable Door Thickness: 25-45mm Recommended Rooms: Bedroom, bathroom, living room, meeting room, etc. Material: Aluminum alloy Color: Silver Package Contents: 1 x Door Handle Locking Kit (accessories are randomly colored; specific color cannot be selected) Note: The actual product may have slight variations in color or appearance due to ongoing updates. Please consider this before ordering if color or appearance is critical. Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3cm. Package includes only the items listed above; other products are not included.