Wilson pro staff junior tennis racket inspired by the all time grand slam champ roger federer the pro staff junior has the performance precision and styling required for any grand slam champs in the making pattern 16x20 head size 100 cross section 23 mm flat beam 26 balance 2 pts hl strung length 26 6604 cm strung weight 89 oz 252 g 25 balance 3 pts hl strung length 25 635 cm strung weight 88 oz 250 g blackred 26 inch