PergoSTET 4m x 4m Square Aluminium Garden Pergola fesatures a fully waterproof louvered roof with 3 side blinds & LED lights, excusive to Harbour Lifestyle. The PergoSTET range - exclusive to Harbour Lifestyle - is an award winning range of modern Pergolas. All PergoSTET pergolas provide shade in the summer heat, and can be switched to a fully waterproof roof at a moment's notice should the great British weather suddenly change! With tilting double-layered louvres, you can quickly switch between a closed roof and an open-top allowing the sunshine to come beaming through. We offer a 3 year guarantee across the range.