Chain-drive gearing mechanism gives you up to 3X more cutting power than traditional designs. Hooked end anchors saw on branch, preventing the blade from slipping out of the groove. Extendable pole saw and pruner makes cutting high branches easier and faster with a sturdy, versatile tree trimming system. Extends 7 Ft. to 16 Ft. extra-long, oval shaped extendable pole allows you to control the direction of the cut and fits the natural shape of your hand for improved comfort. Hooked end anchors saw on branch, preventing the blade from slipping out of the groove. Lifetime warranty.