Main character :
1. Labour saving, it can bind 3-4 times more plant than by hand in a unit time.
2. Time saving: it cost less time, so when farmers busy with the planting,we can have more time to do the other things like sprinkle. And we can also increase the plant area because of its high efficiency. 
3. Binding machine is only 0.5 kg, very convenient to take.
4. Cost recovery very fast. One binding machine can save 3 labour, if 1 labour cost 30-40 RMB /day, so one day, you can almost cover the cost  back....