Premium material: The rotating pen barrel is made of ABS material, with a soft rubber tip and an aluminum alloy dynamic balance ring in the middle of the body; lightweight, sturdy and practical, providing you with a good user experience. The rotating pen is available in two colors, black and silver; the discreet and classic color scheme makes it very attractive, suitable for people of all ages, allowing you to feel confident and flexible while rotating. Easy to use: The aluminum alloy dynamic balance ring in the middle of the pen helps you maintain balance, and stainless steel ball bearings at both ends improve stability, making rotation easier. Beneficial game: Practicing rotating the pen can improve dexterity and coordination, while also training strength, improving attention, memory and learning ability; in addition, the pen game can help relieve stress in work and private life. Excellent gift choice: Whether for seniors, children or adults, this rotating fingertip pen is a fun and thoughtful gift that allows them to experience the joy of finger rotation. Color: Black Material: ABS + Alloy Package contents: 2 rotating fingertip pens Only the above package content is included; Other products are not included. Note: Light reflections and different monitors may cause the color of the item in the picture to differ slightly from the actual product. The measurement error is +/- 1-3 cm.