Dimensions: the bamboo ballpoint pen measures . 5.39 x 0.43 inches, a proper size to hold conveniently and comfortably, adopts a 1 mm black ink refill to provide you with a fluency writing or drawing experience, and you can change the refill yourself in just a few secondsQuality material: the pen is made of quality bamboo, which is safe and does not hurt your hands; It is reliable, has a good waterproof ability and a good rust-proof ability, so it can be applied for a long time.no toxic, no smudge, no latex, wear resistant and reusable, comfortable to touch; gives you a pleasant and joyful writing experienceEasy to use: this bamboo ballpoint pen is easy to use; When you need to use it to write, you just click on the pen tip; When you 't need to write, you just need to press the pen tip again; So this pen is convenient to use and can time.Wide application: this ballpoint pen feels and will not make you feel uncomfortable after long-term use; It is suitable , school, office, diary writing, office supply; You can also give it as a gift to family, friends, colleagues, or use it as a small gift for class activities.Color: wood colorMaterial: bambooPackage Contents:30 x Bamboo ballpoint penOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.