CobeeSoft Grip Retractable Fountain Pen, 4 Pcs 0.5mm Fountain Pen with 10 Pcs Black Ink Sac Fine Point Writing Pen Calligraphy Pen for School Office Gift Supplies(A)

the pen itself is ok ish, the catridges are shocking, they are the stiffest plastic cartridges ever. Which meant a) opening them with the pen took a hell of a lot of pressure to the point i thought it would just explode... i then had to shake the pen a lot to get the ink to come out.. but once the ink flowed, its not bad.. i dont look forward to finishing the cartridge though