Tru Impressions Decorative Concrete Border Rollers offer a simple way to incorporate linear features into decorative jobs without using individual stamps. Borders can be rolled out by one person in the time it takes to wait for concrete to become ready for stamping. For projects with curved edges, the roller creates a cohesive, custom look. The durable polyurethane rollers are available in several patterns complementing most common stamp patterns. Walttools. 888-263-5895.