Doodletop Refill Pens SetColorful Writing Top ToyThe Top That Draws A new spin on a classic... Centrifugal force keeps a spinning top on its axis... These Colorful spinning tops twirl around on the axis of a colored pen, leaving a Doodletop trail on the paper! Makes fun artwork of play!... Colored pens can be changed out to add variety of color to the top's doodling! Twister high speed charger sold separately. This is the Doodletop Refill Pens Set... 6 different color pens that snap easliy into the Doodletop The Classic Drawing Pen That Kids Know & Love! Ages 5 and upNot for children under age 3 years: small parts: choking hazard