Getting the perfect lawn is about doing the right things at the right time, so now's the time to use the Sun Joe 13-in. 12-Amp Electric Scarifier and Lawn Dethatcher with Collection Bag. This addition to your lawn-care routine is going to rake up the little bits of grass and vegitation that form a mat down near the ground and block out the fertilizers, nutrients, and moisture that your lawn needs to stay healthy. Not unlike a regular household vacuum cleaner, this scarifier does its work with a rotating cylinder covered in small, metal tines that spin with the asisstance of AirBoost technology to rake up that matted material. The grass and twigs and leaves and whatever else are raked up and blown into the collection bag for easy disposal. You can adjust the depth of raking and all you need is an extension cord and the 12-amp motor will have you scarifying in no time.