US Patent 7152366 Edging strip with ends having mating features

An edging strip having improved mating features. The edging strip is an elongate segment of extruded material which has top and bottom edges and front and rear sides. Mating features are provided on the top and bottom edges and are configured to unite with each other only when one edging strip is upside down relative to the other edging strip and axially aligned so that one edging strip is slidable axially relative to the other edging strip to thereby cause an interconnecting mating of the mating features.