1.Drawing smoothly, painting evenly and glossy;
2.Has a small steel ball, sharking to keep the liquid always flowing;
3.Filling through Reservoir , instead of tamper;
4.Two nib chooses: fiber applicator or PBT brush ;
5.Airtight design,to keep the liquid long lasting and waterproof.
Application:liquid pen .
Advantages:Filling from the top, you could easily find out if the Reservoir is full of liquid liner ;Good airtight function.