Wrap the packing tape around the packing box, hold the handle in the right hand, press down the handle, place the packing tape under the upper tooth plate and knife body, the end of the packing tape should exceed the tool, loosen the handle, slide the packing tape into the cutter slot and spindle slot. Hold the tool on the left hand, swing the handle on the front and back of the right hand until the strap is tightened. After the strap is pulled to the proper tightness, put the opening at both ends in and put it on the strap to fully open the clamp plier, place it on the seal and close the handle to completely clamp and remove the seal by Clamp plier. Press the handle to cut off the strap and press the handle to move the tool to the right until it is removed from the strap.