The Wilson Ultra 100 CV tennis racquet features countervail technology for maximum power. 

Product Features

• Power Rib throat geometry optimizes power through greater stability and stiffness
• Crush Zone grommet system compresses at impact to boost power and ball dwell time on strings
• Hotspot (hottest part of the sweet spot) increases by 15% for more explosive power
• Uncontaminated design features modern aesthetic with clean lines, bold color accents, midnight navy matte finish and smooth, velvety paint
• Integrated Countervail Technology maximizes player energy, consistency, and precision

 Specifications

• Unstrung Weight: 300g / 10.6oz
• Length: 27in / 69cm
• Head Size: 100 sq. in./ 645 sq. cm.
• Balance: 2 pts head light
• Swingweight: 323
• Stiffness/Flex: 74
• Beam Width: Min: 22.5mm min Max: 26.5mm max
• Composition: Graphite
• Power Level: Low-Medium
• Swing Speed: Slow-Moderate
• String Pattern: 16/19
• How to String: Head = Skip 8 Throat = Skip 8
• String Tension: 50 lbs - 60 lbs