Product description: Durable materials: They are made of anti-skid and durable materials , non-slip, wear-resistant and pressure-resistant. Exquisite design and easy to hold: Weighted pens at both ends and drop-resistant caps, which delicate and comfortable to hold. Functional tools: Playing with the rotary pens can enhance the flexibility of the hands, relieve stress and add fun to study and office. Replacement and use needs: You can choose some according to your preference and share the other rolling pens with your relatives, colleagues, classmates and friends. Specification: Material: Plastic Size: 22cm (WithLight) Color: 2Colors Package include 1PC * Spinning Pen Note: Please allow 1-2cm error due to manual measurement.