4 Pcs Spin Cool Pens! This unique set of rolling finger spin game pens features a weighted ball that allows for smooth, anti-slip writing and spinning. Perfect for students or anyone seeking an entertaining way to focus and unwind. With refillable black ink cartridges, these pens offer a seamless writing experience. Indulge in the mesmerizing spin motion while jotting down notes or doodling. Compact and portable, this stationery set is an ideal companion for school, work, or leisure activities. Embrace the joy of writing and spinning with the Spin Cool Pens!