This Keeper Heavy Duty O-Track features a beveled edge that makes it easy to roll or drive over, and cconveniently secure cargo in a variety of locations along the length of the strip . The Aluminum design will not rust, and can be used with single or double stud fittings. Keeper is the expert and leader in branded products and services people trust to ensure their personal property is reliably secured, transported, and stored. These well engineered products are the most trusted to provide unique, simple solutions for specific everyday needs, offering reliability, security, safety, and ease of use.