This 53 tall Offset Steel Bollard has a design that places the base plate back from the bollard, so it won’t interfere with foot or machine traffic. The 8 x 8 base plate is 5/8 thick and has four 4 pre-drilled mounting holes mounting hardware is sold separately – Hole dimension 0.866 x 1.18. A removable plastic top cap and black/yellow safety tape are included. The bollard is made of heavy-duty welded steel construction with a safety-yellow powder coat finish. 53H with a 4-1/2 bollard diameter.