The Ryobi RY18SFX35A-0 18V ONE+ Brushless 35cm Scarifier is perfect for maintaining lawn health by removing thatch and moss. This allows water and nutrients to reach the soil underneath instead of sitting on top of the surface. The scarifier has four working depths so you have complete control over the lawn health. The RY18SFX35A-0 requires 2 x 18V ONE+ batteries. The RY18SFX35A-0 is sold as a ‘bare’ tool (without a battery or charger) but is compatible with all batteries and chargers across the 18V ONE+ system.