2) Durable stainless steel tip 0.5/0.7mm for note, carbons and general writing; Expressive liquid ink for consistent writing and line density; Ideal for home, office and school 3) Ball:0.5/0.7mm dia 4) Tip:stainless steel 5) ink:Black,Red,Blue,Green 6) Packing Uints12pcs/box, 144pcs/carton; 1728pcs/ctn
8) Delivery time:20days
10) Port :FOB NINGIBO/SHANGHAI
11) Logo:accounting customer requestment or Bonvan brand
12) Roller pen usd for gift ,promotion ,office and school so on .