Model : Snowhite free ink system roller pen M1 

ink color : black ,blue ,red green . assoreted colors 

Tip size : from 0.28 to 1.0mm

Ink made by Snowhite.  Tip made by snowhite 
Free Ink Roller

Model: T16B

Tip Type: Needle Tip

Tip Size: 0.28mm/0.38mm/0.5mm/0.7mm

Ink Color: Black, Red, Blue, Voilet, Pink, Green, Light blue (Liquid ink conforms to ASTM D-4236)

Packing: 12pcs/Dozen Box, 144pcs/Middle Box, 864pcs/Carton

Features:

1.Smooth and continuous writing without skipping

2.Available in 7 ink colors

3.Quick-dry ink with vivid and bright color