RYOBI Refurbished P2040 10" 18 Volt Ni-Cd Cordless Electric String Weed Grass Trimmer Edger Works with all batteries in the Ryobi ONE+ 18-volt tool system Dual chemistry charger works with NiCd and Li-ion ONE+ batteries 18-Volt NiCd battery included Shaft rotates for easy edging Automatic line advance for continuous operation