The Agri-Fab, 40” Tine De-thatcher Model #45-03433-AMZ with assist you with the dethatching & raking of your yard and have your grass growing better in no time. Tine de-thatchers effectively loosen and lift thatch for healthier lawn growth. The best time to de-thatch is in the fall, because it allows water and nutrients to reach the grass roots in preparation for the spring. The 40” Agri-Fab de-thatcher effectively uproots dead, matted grass swathes up to 40” in length. The 40” groomer has 14 rust-proof and replaceable heat-treated tines for maximum performance and durability. The Agri-Fab, 40” Tine De-thatcher Model #45-03433-AMZ will last you for years to come with proper care and use. All Agri-Fab, products come with a 3-year limited warranty