- On sale!
Ultra power. Ultra spin. Wilson delivers on both promises with the new Ultra 100 Countervail. With the update comes new technologies, including Power Ribs in the throat area, Crush Zone grommets and Countervail material in the frame. In addition, the Ultra 100 Countervail's 100 square inch head size, 11.2 oz strung weight and 320 swingweight are user friendly specs for a wide range of players.