About the Mikasa Estrella Plus The Mikasa Estrella Plus Soccer Ball is from Mikasa"s Premier Series. Designed for the serious athlete, each ball in this series is created with cutting-edge materials that perform superbly and look great. Built to meet the challenges of the game and satisfy the most demanding athlete. * Set of 6 soccer balls * Official Estrella Plus soccer balls by Mikasa * Size 4 or 5 based on availability * Abrasion-resistant polyurethane cover * Hand-stitched game ball * Premier Series design * 2-year warranty