Ryobi ZRP2210 ONE Plus 18V Cordless Hybrid Lithium-Ion 12 in. Straight Shaft String Trimmer (Certified Refurbished) Hybrid power 18-Volt battery or electric 18-Volt Lithium-ion battery (included) works with all Ryobi One+ 18V tools Shaft rotates for easy edging Height adjusting shaft for user comfort Adjustable cut width: 10/12 in.