Prince O3 Speedport Black Prestrung Squash Racquet with Case This racquet ships pre-strung This racquet includes a cover Prestrung squash racquet with distinctive O-ports for greater power and stability O-ports help stabilize the racquet to give you more control on off-center shots Sweet spot is up to 59 percent larger than traditional racquets for improved power Aerodynamic, lightweight frame moves through the air up to 24 percent faster Head size measures 73 square inches; weighs 135 grams unstrung