Bringing a new geometry and construction to intermediate players, The Wilson Ultra 100L v4 Tennis Racquet is the lightest frame in the Ultra v4 series while delivering a blend of power and stability. Wilson has expanded the sweet spot channel at the tip of the hoop to decrease bulk in the beams and an increase in power, creating a whole new aerodynamic look. The Ultra 100UL v4 has a crush zone grommet system that compresses at impact, thus increasing ball dwell time on the strings, along with an increase in boost power. Club players, rising junior players and doubles players can all find this racquet appealing for its versatile power and stable construction.