scaffolding double coupler 1.Material: Q235/Q345 2.Technics: Pressed 3.Dimentions: 48.3*48.3mm 4.Weight: scaffolding double coupler1.Material: Q235/Q3452.Technics: Pressed3.Dimentions: 48.3*48.3mm 48.6mm*48.6mm4.Weight: 0.84kg (as per your requirement) 5. Surface dealt: hot-dipping , galvanized , gold color galvanized ,self-coloured scaffolding double coupler