Never in the history of performance have juggling balls been so eye-catchingly pretty. Novice and master jugglers alike will delight in eeBoo's soft and perfectly weighted juggling balls – inspiring enthusiasts of this classic hobby to reach new heights. Each set of 3 balls is beautifully designed with brightly colored velvet and festive, stitched designs. The set includes a colorful instructional poster featuring simple step-by-step instructions guiding young jugglers as they dazzle friends and family. Diameter of ball is approximately 2.5". Juggling and mathematical thinking are intricately linked. Moreover, scientists have found that juggling is associated with an increase in white and gray matter in the brain.