The Webb LS38 scarifier has 22 double-tipped carbon-steel blades, these blades will gently but thoroughly rid your lawn of both damaging moss or thatch. Once you have completed the task the light, air, moisture & other vital nutrients will be able to penetrate your lawns root network. this will result in a lush, green growth & a healthier looking lawn. The LS38 has a ball bearingwheels & a durable powder-coated pressed-steel chassis for rust resistence.