1. Shell material: plastic 2. Refill thickness: 0.05mm 3. Specification: 8 pcs/box 4. Needle-shaped metal pen nib, writing ink smoothly and continuously 5. A variety of models to meet a variety of use needs 6. The ink dries quickly, does not melt or smudge when exposed to water 7. Pen body length: 13.5 cm 8. Single box weight: about 85.3 grams
