TECHNICAL SPECIFICATIONS Owner: Knight DragonArchitect: Diller Scofidio & RenfroGen. Contractor: Mace Group LtdDimensions: length: 220 mDescription:supply and installation of steel structures for an elevated walkway in the area adjacent to the O2 arena. The structure consists of main elements called “islands” connected by pedestrian bridges. The supply also includes finishing works such as technical and architectural gratings, glass and stainless steel parapets.