Please use dry and finely chopped tobacco to avoid stuck and not working.If the spring is stuck and does not turn,turn off the power immediately to avoid burning out the motor. The Electric Cigarette Rolling Machine with a 6.1-inch length, 2.6-inch width and 2.6-inch height .Step 1: Rotating the blue gear to adjust the density of tobacco. Step 2: Connecting the power cord to make tobacco cut into the feeding port. Step 3: Start to make tobacco by pressing the start button. Step 4: Taking out the cigarette. Using the tightness knob to adapt to different tobacco according to your habit; When the machine is filling cigarettes, using a stir bar (item included) to properly pressing the tobacco in the hopper can make the cigarettes of better quality. Remember to flick, tap or swing the finished cigarette in the air or onto the table to get rid of the tobacco powder. This product not only has a simple structure but also fully functional. Even a beginner can make a cigarette in a few seconds. It's a best gift for smokers.you can use this for herbal cigarettes such as rose, lavender, chamomile. The cigarette is made by ABS plastic and stainless steel. The cigarette outlet is made by Stainless Steel, which is not easily rust and has a long service life. This item not only covers a brand new cigarette rolling machine but also includes an adapter, plugs, brush and stir bar.