[Heavy Duty Stainless Steel]Chain Door Guard constructed of stainless steel HandQ steel material features high hardness, corrosion and rust resistance, strong and durable properties ensure long service life.[Nice Black Finished]Using ultra high temperature matte black spraying technology finished, black surface is smooth and beautiful, not easy to oxidation, fading and paint off[Anti-Theft Design]With Spring Anti-Theft Press Lock, Increase safety performance, Offers Reliable Protection Against Intruders[Larger Size and Thicker Material] 5 inch length body 6.7 inch chain length Material thick:1/16 inch thick, all-in-one stainless steel made[Easy To Install]All high quality installation hardware and instructions are included in the package. You can mount it easily by simply installing the instructions. 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. Sold by-Minnanxin