Amazon.com Product Description
What's the difference between winning and losing? Wilson boils it down to one word: [k]ontrol. The Wilson [K] Zen Team tennis racquet is made using [k]arophite black technology, a proprietary next-generation structure that results in better feel and a stronger, more stable performance. As a result, it's easier than ever for players to shape their shots and hit the corners with accuracy. And control is a crucial tool, as players who had the fewest unforced errors have won a combined 74 percent of the most recent Grand Slam tournaments. As a whole, the [K] Zen Team provides a sense of touch that's almost organic in feel, making it ideal for the player who's always in the moment.
The [K] Zen Team also boasts Wilson's Double Hole technology, which offers larger-diameter grommet holes that create more flex within the stringbed upon impact, resulting in a smoother feel and added power. And in comparison to its [K] Zen sister racquet, the [K] Zen Team offers extra spin and maneuverability in a lighter overall frame.
Specifications:
- Head size: 103 square inches
- Length: 27.25 inches
- Weight: 10.1 ounces (strung)
- String pattern: 16 x 19
- Balance: 0 points, HL
- Cross section: 26 mm flat beam
- Grip sizes: 0 to 5
About Wilson
At the heart of sports history for almost a century, Wilson has been influential and intimately involved in shaping the games of tennis, golf, baseball, and American football. As the originator of breakthrough technologies, Wilson has produced legendary classics and earned world-wide legitimacy in each sport it participates in. The world's leading manufacturer of ball sports equipment, Wilson's core sports include tennis, baseball, American football, golf, basketball, softball, badminton, and squash. A division of Helsinki-based Amer Sports, Wilson is headquartered in Chicago.
Product Description
For 2009, Wilson prints "K ZEN" only on the frame.
The specification is for the K ZEN TEAM, despite the typo on the frame text.
The Wilson K Zen Team is an all-new racquet that delivers an extremely versatile combination of power, maneuverability, and comfort in a lighter (10.3 oz. strung) weight than the K Zen (11.1 oz. strung). Designed for a wide variety of players, the K Zen Team offers the control of a mid plus 103 sq. in. head size, with the added pop of a 27.25 in. length and a stiffer 26mm beam. A solid choice for a player looking for control, feel, with some added pop.

What is [K] Factor?
At Wilson's global launch of the [K] Factor product line in Las Vegas February 27-March 1, this next-generation technology was unveiled to Wilson dealers from 50 countries around the world.
All [K] Factor racquets utilize Wilson's proprietary next-generation [K]arophite Black structure which adds additional bonds between the SiO2 and graphite molecules on a nanoscopic scale, resulting in more feel and a stronger, more stable racquet. Overall, there are 4 new key [K] Factor technology concepts found in various configurations depending on the [K] Factor model:Racquet Specifications
Headsize: 103 sq. in.Length: 27.25 in.Weight (strung): 10.30 oz.Stiffness (Babolat RDC): 69Balance: 13.63 in. Even BalanceCross Section: 26mm Straight BeamSwingweight: 313 kg*sq. cmString Pattern: 16x19Grip: Wilson K GripWilson Stiffness Index: 6