Reliable: The rotating pen features a symmetrical design, with a soft rubber tip and a sturdy ABS barrel. Its aluminum alloy support ring ensures durability for long-term use. Stable: Measuring approximately 21.6cm / 8.5 inches, this pen has stainless steel beads at both ends for balanced weight, making it easy to rotate. Decompression Toy: Ideal for both children and adults, this pen helps improve focus, memory, and learning skills. It also serves as a stress-relief tool for everyday pressures. Great Gift: These rotating pens make perfect gifts for friends, family, colleagues, and classmates on occasions like Thanksgiving, Christmas, New Year, and birthdays. Note: This product is a spinning pen and does not include refills. Adding a refill may affect the pen's balance while rotating. Recommended not to add refills. Type: C Color: Black Material: ABS + Aluminum + TPR Package Contents: 1 x Spinning Pen Note: Color may vary slightly due to lighting and display differences. Measurement may have an error of +/- 1-3cm.