Grass Stitcher GSD-002 20-Inch Double Grass Stitcher Rugged construction and ergonomic design-with a no-questions-asked lifetime warranty and 100-Percent satisfaction guarantee No back or arm muscles-Uses leg power efficiently No back or arm muscles-Makes use of body weight Patented perforations-Creates ideal environment for seed germination-extra-wide hole surrounded by loose soil Durable wheels-Forgiving poly/fiberglass material flexes when encountering obstacles, resists breaking