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 Pen Pen Tip:0.5mm Pen Length:140mm Color:As Shown Material:Metal+Plastic Package Contents: 6 * Crunchy Sensory Pen Only 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.