Flip the switch and witness the smooth cylindrical pen magically crinkle into a faceted geometric pattern, accompanied by an audible sound, creating a sensory delight.With a 0.5mm fine tip convenience of quick-drying, high-quality ink, Crunchy Sensory Pen ensures your pages and hands for precise and clear writing.Enhance comfort during long writing sessions with the retractable gel pen featuring a contoured silicone grip for ergonomic support.Whether you're at work or home, our metal shape shifting pen makes for a perfect desk accessory.Indulge in the addictive combination of visual, and tactile effects, making the artistic Crinkle Pen a must-have for kids, teacher, student, doctor, lawyer, designers, and artist.Name:Geometric Deformation Neutral PenPen Tip:0.5mmPen Length:140mmColor:As ShownMaterial:Metal+PlasticPackage Contents:6 * Crunchy Sensory 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.