Qty 4 SPA or Hot Tub Cover Nexus Lock Plastic Buckle Replacement Kit Kit Includes 2 Keys, 4 Male sides with Lock, 4 Female sides with Prongs, 12 Stainless Steel Screws, 4 Strap Adjustors Made in the USA 1" Stainless Screws available as an add-on, please email us Key Turns Lock 90 degrees, Preventing Unfastening Easy Pinch Release, Do Not Need Key to Open/Unfasten Lockable Tie Down Straps Meets Required Safety and Theft-Proofing Guides Lock Assures Product Retains Maximum Wind Resistance Berry Amendment Compliant when Paired with Made in USA Webbing Fabrication High-End Thermoplastic is Safe at Extreme Temperatures and Weather Conditions Keyed Entry Cannot be By-Passed with Simple Tools Better Than OEM in Many Cases Also available in 8 ft, 10 ft and 12 ft complete strap kits! Kit Also Available in other listings in (1), (2) and (4), (6) Qty Listings Printable Installation Instructions Available On Request Our hot tub/spa cover tie-down replacement buckles are made from strong durable plastic. Several buckle kits and complete strap kits available. The set also includes comprehensive instructions covering easy replacement even if sewn into the straps.