Head Coco Jr. 21With its colorful, vibrant design, the 21 inch COCO 21 TENNIS RACQUET is ideal for girls aged between 4 and 6 who are new to tennis. Named after HEAD ambassador Coco Gauff, this racquet comes with the Damp+ insert, which reduces vibration. To add to the fun, the racquet's colorful header card has an animal design and can be worn as a mask, and the racquet also comes with stickers. Named after Coco Gauff Colorful design Damp+ insert reduces vibration