1.The light weight (only 80 gr)

2.It works well and silent

3.Low vibration

4.Ergonomic

5.Come with needle retainer thus no need for rubber bands

6.Adjustable hitting force

7.Suitable for standard grips, tubes and needles

8.General spring clip cord is easily applied with.

9.Suitable for most power supplies 0-14V

10.Works well for both outlining, shading and coloring

11.Normally stops in upper position

12.No moving components in contact with plastic barrier.