KES SUS 304 Stainless Steel Swing Bar Security Door Guard with 360-Degree Rotating Arm Safety Door Lock, Brushed Finish, HDG202-2 RUSTPROOF: Manufactured from T-304 premium-grade stainless steel, added 18/10 Chromium/Nickel content to protect against corrosion & rust. DURABLE FINISH: Brushed stainless steel finish, build to resist daily scratches and corrosion. This Security Lock Offers Reliable Protection Against Intruders Allows 2in. Opening For Viewing Visitor Or For Locked Ventilation EASY INSTALLATION: Hardware pack included.