Little Giant Ladders, Sure Step, 3 Step, Double Sided Step Stool, Fiberglass, (11953), Type 1AA, 375 lbs Weight Rating, Hi viz Green GCU05T Requires 18V cordless or ½” Requires 18V cordless or ½” corded drill with 1500 RPM (not included) sold separately) Smooth running precision ball bearing guides reduce heat and friction for increased blade life and smoothness of cut Setting the guides takes only seconds just squeeze the bearings in toward the blade and tighten the knobs Bearing assemblies include side bearings and rear thrust bearing Blade guard features easy to read height scale Complete instructions for installation and use are included lightweight fiberglass Non Conductive