Ryobi ZRRY40511 40V Cordless Li-Ion Chainsaw Kit Certified Refurbished This Certified Refurbished product is tested & certified by Ryobi to look and work like-new. The product includes all original accessories, and is backed by a 1 Year warranty. Works with all Ryobi 40V Lithium-ion tools and batteries Brushless motor for increased torque and gas-Like power Cutting speed of a gas chainsaw for faster and effeicient results Side access chain tensioning for easy adjustments