tyre2

Section of the tyre. In the bottom is a plug (oranage part) made of chip board to keep the concrete in and a smaller one to keep the tube in place. The yellow parts are stones or pieces of bricks, this way you dont need to make that much concrete. Eyebolt comes just out of the concrete, so you dont hit it with your feet or anything. I put a flat bar on the eyebolt to secure it in place. The small round things are the steel net used normally when making floors etc.