The 7-Bike Rolling Bike Rack is constructed from heavy-duty 2" Schedule 40 steel tubing that is protected by a thick, high-gloss polyethylene finish. Choose from (20) popular colors. Various configurations can accomodate 5 up to 11 bikes at a time. Predrilled holes in the base plates allow for easy surface mounting to concrete surfaces. Extended legs are also available for sturdy inground placement as well. Check out all of the sophisticated Bike Racks we have to offer in our catalog.