tubular handle material could be ss201, ss304 or ss316 various finish color available handle door lockMaterial: lever---ss304, escutcheon---ss304, ss316 also availableFinish: SB(stainless steel brushed) SP(stainless steel polished) PVD(Physical Vapor Deposition)Specification: Hollow handle,19mm diameter,1mm thickness.Handle Rosette:Diameter 54mm*7.5mm-8mm or 52mm*10mm mm, or according to your ...