Features: Reliable material, the rotating pen has a symmetrical design, the pen case is made of PC, and the dynamic balancing rings are made of alloy, which is reliable and can be used for a long time. This spinner pen is more stable and is about 22.3 cm long, which is long enough for you to use it; and both ends of the pen are embedded with metal tips for counterweight, making it easier for you to spin the pen. Stress relief toy, the pen spinning mode is suitable for both children and adults; you can use this pen to train your hands, eyes and cerebellum, so that you can improve your concentration, memory and learning ability; it can also help you relieve the stress of work and life. Good gift choice, you can give these game finger pens as a gift to your friends, relatives, colleagues, classmates on Thanksgiving, Christmas, New Year, birthday, etc, to show your care. There are 5 colors to choose from, you can choose according to your needs. Specifications: Pen Case Material: PC Color: Black, Blue, Red, Green, Purple Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1 Piece Spinning Rotating Pen