The 7-Bike Rolling Bike Rack by Dero is made from heavy-duty 2" Schedule 40 steel tube for superior strength. A thick, high-gloss polyethylene powder coat finish protects from rust, corrosion and vandalism. Choose from (20) high-gloss powder coat finishes. Predrilled holes in the feet allow for easy surface mounting to concrete surfaces. Available in surface mount and inground mount models. Additional configurations are available that can accomodate up to 11 bikes - please call for assistance. Check out all of the sophisticated Bike Racks we have to offer in our catalog.