Kit Includes 4 Keys, 4 Male sides with Lock, 4 Female sides with Center Engineered for Fireloc and clean-room application products Tested and approved by Underwriters Laboratories for use in the United States & Canada Made by the leading manufacturer of Heat Resistant Plastic Hardware Key Turns Lock 90 degrees, Preventing Unfastening Easy Center Push Release Buckle Meets Required Safety and Theft-Proofing Guides Insurance Industry Recommended Product Tested to exceed excessive sustained winds Lock Assures Product Retains Maximum Wind Resistance Berry Amendment Compliant when Paired with Made in USA Webbing & Fabrication High-End Fireloc Nylon is Safe at Extreme Temperatures and Weather Conditions Keyed Entry Cannot be By-Passed with Simple Tools Better Than OEM in Many Cases Kit Also Available in other listings in quantity (4) four & (8) eight Qty Listings Printable Installation Instructions Available on Request