The einhell gc sa 1231 electric scarifier lawn aerator is recommended for small to middle size plots up to 300m with 8 high quality double blades the ball bearing mounted cutting roller removes weeds and moss with their roots thoroughly the ball bearing mounted aerator roller allows a professional soil aeration with 42 claws the powerful inverse speed motor delivers a strong torque for continuous working progress and consistently good results it has a robust plastic housing for increased durabi