HammerEdge is a strong, durable and easy-to-install pound-in edging. The “shark-tooth” cutting design penetrates all soils and eliminates the need for trenches – it simply hammers into the ground and does not require edging stakes. The interlocking sections connect easily and provide ease of corner, arc or straight-edge installation for 18′ of coverage. Made in the U.S.A. 18′ L