1:Hydraulic drive , 2: Variable height easily adjusted, 3:Drop down handles for easy movement, 4:planking passage 500mm. 1:Hydraulic drive ,2: Variable height easily adjusted, 3:Drop down handles for easy movement,4:planking passage 500mm.5: 2 wheels6:all Zinc7: warranty ; 1 years8: Longth : 4 Meters hydraulic log conveyor