Strong load-bearing capacity, can maintain stability even in bad weather. TPU cushion, thick, makes the round tube tighter, can better protect the tube from damage. Stainless steel elbow size: 29*16*3.8cm. 88° arbitrary free adjustment. The inner diameter of the bracket is 53mm/2.08in, suitable for round tubes with an outer diameter of 38-50mm/1.49-1.96in. Style: straight tube/elbow (optional). Weight: 1513.2g. Packing size: 460*190*105mm. In the box: 1*Support base, 4*Extension screws, 1*U-type wrench, 1*L-type wrench, 3*Screw cap, 1*Instruction manual, 2*M10 steel screws, 1*Long steel screws, 2*Short steel screws, 1 steel L tube, 1*Plastic adapter, 1*TPU pad, 4*Ordinary screws, 4*Plastic Fixer.