RYOBI ONE+ Cordless Chain Saw is part of a system that works with the RYOBI ONE+ batteries platform, giving users ultimate versatility. It's designed with upgraded lithium+ batteries, offering more power and run-time than its predecessor. Its 10 in. bar and chain are ideal for pruning and trimming trees and bushes 2x faster than its predecessor. A push-button oiler makes for easy chain lubrication and longer chain life while side access chain tensioning provides easy adjustments.