Safety Bollard Steel Bollard Post Steel Barrier 48'H 4.5'D Yellow Signs Pipe Q235 Steel Material High Visibility Sealed Steel Base Powder Coat Finish Assembly Easily Extensive Uses Base Size(L x W): 7.9 x 7.9 in / 20 X 20 cm,Color: Yellow and Black,Model: Safety Bollard 48 x 4.5 in,Base Thickness: 0.24 in / 6 mm,Material: Q235 Steel,Height: 48 in / 122 cm,Net Weight: 20 lbs / 9 kg,Tube Thickness: 0.12 in / 3 mm,Tube Diameter: 4.5 in / 11.4 cm,Included Bundle Parts: 1 set (4 pieces )mounting anchor bolts