1. REPLACE STANDARD LATCH AND STRIKES – The Security door strike is designed to replace the standard, separate latch and deadbolt strike plates with a one-piece combo plate. 2. MAXIMUM SECURITY STRIKE – This door strike provides maximum security! It comes with a one-piece combo plate plus six 3 inch long screws for maximum security. These longer screws allow for a strong hold, which helps prevent kick-ins. 3. TALLER LATCH AND BOLT OPENINGS – This door strike features slightly taller latch and bolt openings to accommodate door hardware spaced from 5-1/2 inch to 6 inch hole centers. 4. EASY INSTALLATION – Installation is quick and easy, and the door strike fastens into jamb and door frame with screws. Some mortising and pilot hole drilling may be required for a flush install. 5. , STRONG CONSTRUCTION – Made of stamped steel with a satin nickel finish, this door strike is , sure to last the test of time. Measure the center holes for your replacements. These are designed to be used for 5 -1/2 inch to 6 inch on center only. 6. Steel combination. 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.