Sun Joe CJ601E 14-Amp Electric Wood Chipper/Shredder Ideal for turning branches and twigs into nutrient-rich garden mulch Powerful 14 amp motor effectively chips and shreds branches up to 1.5-inches thick Compact design with 6-inch wheels for easy portability Safety hopper with locking knob prevents the motor from operating when opened ETL approved; Full 2-year warranty NOTE: Refer the Installation instructions found on pg 7 and troubleshooting on pg 13 from the User Manual which is highly recommended.