Liquid ink refillable roller pen
Free ink roller, liquid ink conforms to ASTM D-4236
Tip: Stainless steel tip,  
Ball: 0.5mm/0.7mm/0.55
Metal clip with Rubber grip take you good feeling of writing
Ink color : Blue, black, red, pigment ink
Proposed packing: 12pcs/dozen box, 864pcs/carton
Advantage: Precise writing smooth to the last drop of ink at any angle, ideal for both office and students.