Color: black Material: stainless steel Size: 4-1/2"× 3-7/8"×1-3/4" Package Includes: 1×door lock reinforcer, 2×long screw, 4×short screw, 2×nut, 1×user manual Note: - Please refer to the measurement. Tiny measuring error is allowable in normal range. - There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item. 【Enhanced Home Security】Inside the package, you'll receive a door lock reinforcer. This reinforcer is specially designed to fortify weak points on your doors and repair them to enhance lock strength, effectively deterring forced entry and providing an additional layer of home security. 【Proper Sizes】Our reinforcement plate measures 2-1/8 inches in bore, 2-3/8 inches in backset, 3-7/8 inches in width, and 4-1/2 inches in height, suitable for doors with a thickness of 1-3/8 inches. Warm tips: Before purchasing, please double-check the dimensions to ensure a perfect fit. 【Durable Stainless Steel Material】Boasting quality stainless steel material, this door lock plate is sturdy and resistant to deformation, cracking, and wear. The meticulous coating enhances its rust and corrosion resistance, ensuring long-term reliability. 【Versatile Compatibility】The security door lock reinforcer is not only suitable for wooden or metal doors with deadbolts, but also suitable for knobs, latches, and more, effortlessly improving your home's security and bringing you peace of mind. 【Effortless Installation】This reinforcement plate comes with matching installation accessories and detailed instructions for easy setup. You simply remove the lock core and handle, match the door seal to the door lock hole, secure it with screws, and then reinstall the lock core.