The Yonex EZONE 25 Junior Sky Blue Tennis Racquet is constructed with aluminum for a lightweight and comfortable response. The 110 square inch head offers forgiveness for junior players (ages 7-9) while the 14x15 string pattern helps juniors create spin while developing their strokes. The Yonex EZONE 25 Junior Sky Blue Tennis Racquet comes pre-strung for convenience, and is a perfect racquet for players playing with a red ball on a 36 foot court.