Designed And Manufactured By Us In The Uk This Aluminium Pond Cover Carries A 10 Year Anti Corrosion Guarantee And Is Available In A Huge Range Of Sizes. the Strong Pond Cover Uses 25mm Diameter X 1.6mm Wall Thickness Aluminium Tubing And Is Connected Using Rigid Nylon Tubing Connectors. On Larger Pond Covers (above 3.5m X 3.5m) The Framework Includes Sturdy Tensioning Wire Bracing Made From 2mm High Strength Galvanised Multi-strand Steel Cable, Secured With Professional Gripple Tensioners. The Strong Framework Is Then Covered With 20mm X 20mm Diamond Heavy-duty Anti-bird Mesh Netting, Which Is Secured In Place With Releasable Cable Ties.the Finished Pond Cover Gives 40cm Clearance Above The Pond To Avoid Any Plant Damage And Is Perfect For Stopping Herons And Catching Leaves And Debris Before It Falls Into The Pond.n.b. Not Designed Or Guaranteed To Prevent Children Or Pets From Falling Into Ponds.*please Note That Our Aluminium Pond Cover Sizes Are Generous And Where Space Is Limited Please Allow An Extra 2% To The Measurements For Fitting. designed And Manufactured By Us In The Uk10 Year Anti Corrosion Framework Guaranteestrong Aluminium Tubing - 25mm Diameter X 1.6mm Wall Thicknessrigid Nylon Tubing Connectorscovers Over 3.5m X 3.5m Use Tensioned Wire Bracingwire Bracing Uses 2mm Diameter High Strength Galvanised Multi-strand Steel Cable Complete With Professional Gripple Tensioners20mm X 20mm Diamond Mesh Heavy-duty Anti-bird Netting - Secured With Releasable Cable Tiespond Cover Gives 40cm Clearance Above Pondpond Cover Will Catch Leaves And Debris And Stop Herons