Name: multi-function gyro penSize: 10.3*1.1cMWeight: 37g (including packing box)Function: gyro, writing, lighting, etcSpecifications:1. Internal metal material structure: use selected high-quality metal structure at any cost, stable and not easy to damage2. exquisite smooth bearing: smooth bearing rotation does not jam rotation time, long service life and stability3. Imported smooth ink: select smooth ink, writing smooth ink is not easy to break, ink is not easy to spread4. Standard LED lighting lamp: high brightness, and continuous light does not flicker, night use more elegant5. Psychological decompression: When you feel anxious and nervous, pick up this decompression gyro pen and you can quickly adjust your mood and relieve your psychology.Package Included:1 * pen/5 sets * batteries/10 * Pen refill"