Reliable: The rotating pen features a symmetrical design with a TPR soft rubber tip, an ABS material barrel, and an aluminum alloy dynamic balance support ring, ensuring durability and long-term use. More stable: Measuring approximately 21.6 cm (8.5 inches) in length, this rotating pen provides a comfortable grip; stainless steel beads are embedded at both ends to achieve balanced weight distribution, allowing smooth and easy pen spinning. Decompression toy: Suitable for both children and adults, this pen can be used to train hand-eye coordination, potentially improving focus, memory, and learning ability; it also helps relieve daily stress. Ideal gift choice: These spinning pens make thoughtful gifts for friends, family, colleagues, or classmates on occasions such as Thanksgiving, Christmas, New Year, or birthdays. Note: This product is a spinning pen without refill ink. Adding a refill is not recommended as it may disrupt the balance during spinning. Type: A/B/C/D/E/F/G Color: black-red, black-blue, blue-black, silver-white, red-white, blue-white, silver-black Material: ABS + aluminum alloy + TPR Package Contents: 1 x Spinning Pen Note: The package includes only the items listed above. Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by 1-3 cm.