Roller Pen Replacement Refill Spiral Black Blue $ 4.64 Product information: Purpose: Writing Color: Standard-flat nozzle straight black 0.5mm, standard-flat nozzle straight blue 0.5nn, standard-flat nozzle straight black 0.7mm, standard-flat straight blue 0.7mm, spiral black 0.7mm, spiral mouth blue 0.7mm, spiral mouth Black 0.5mm, spiral mouth blue 0.5mm Material: Metal Model: Baozhu refill Line width: 0.7mm Packing list: Pen refill * 1 Product Image: