Teeter Totter/Seesaw heavy duty hardware components. Assembly includes: Industrial Pillow Block Bearing welded to steel plate that attaches to a wooden plank (wooden plank not included). Bearing mounts on 3 1/4" rigid conduit that is then slid down into 3 1/2" rigid conduit stand pipes that are buried in the ground. Two tires are included that are buried half in the ground under each end to provide soft landing.