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Blade SW 104 Countervail Autograph Tennis Racket


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Stringing Options

Wilson Recommends for this Racket:
  • NXT Strings

  • Tension range 22.5 to 27.5 kg, optimum 25 kg.

String model

  • The personal racket for a 23x Grand Slam winner, the Blade SW 104 Autograph Countervail features a large headsize that enhances the sweetspot for pure strikes. A dense string pattern provides traditional control and durability for tennis players aspiring to play like Serena.
    • Serena's personal racket
    • Integrated Countervail Technology maximizes player energy
    • X2 Ergo compatible handle creates optimal personalized feel for modern 2-handed backhand
    • Stringing instructions
  • Product SKU(s) WRT73341U1, WRT73341U2, WRT73341U3
    Cross Section 22MM Flat Beam
    Head Size 671 sq cm
    String Pattern 18x19
    Unstrung Balance 33cm / 8pts HL
    Unstrung Weight 306 g
    Length 28 in - 71.1 cm
    Series Blade
    Player Type Avid Competitor
    Racket Benefit Feel

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Tech Tabs

About Blade SW 104

The first of its kind, Serena’s autograph racket marks a life dedicated to creating an unmatched legacy on and off the court. The weapon of choice for her historical 23rd grand slam Down Under, this signature racket embodies everything a legend is and boldly inspires others to make their own mark on the world.


With its groundbreaking carbon layer integrated into the frame, Countervail is a material technology that maximizes a player’s energy, reduces muscle fatigue and shortens recovery time.

Wilson Tennis Racket Design DNA

Design DNA

The game has never seen racket designs like this before – ones that focus only on the essentials and strips away all the unnecessary elements. What remains are timeless, uncontaminated designs, meticulous in detail and bold in their beauty. They create rackets that want to be held and a psychological edge for the player bold enough to pick one up.

Wilson Tennis Racket Braided Graphite and Basalt Technology

Braided Graphite & Basalt

Braided Graphite + Basalt is an elastic and reactive material combination that that improves the flex of a racket. This evolution of Wilson’s BLX technology increases the ball’s contact with the strings to provide enhanced feel and greater control.

Wilson Tennis Racket Parallel Drilling Technology

Parallel Drilling

Provides a consistent, more forgiving string bed response while dramatically increasing the sweet spot.

Tennis Magazine's Best Heavy Hitter Tennis Racket - Blade SW 104


The Blade SW104 Autograph Countervail was named “Best Heavy Hitter” racket in Tennis Magazine’s 2017 Racquet Guide.