FindMyRacquet
    Wilson Hyper Hammer 5.3 Stretch OS

    Wilson

    Wilson Hyper Hammer 5.3 Stretch OS

    Head size
    110 sq in
    Weight (strung)
    255 g
    Balance (strung)
    8 pts HH
    Swingweight
    301
    Stiffness
    70 RA
    String pattern
    16x20
    Length
    27.5 in
    Beam
    28/25/25 mm
    String tension
    55-65 lbs
    Composition
    15% Hyper Carbon / 85% Graphite

    $169 at Tennis Warehouse

    Price checked Oct 4, 2026. It can change.

    View at Tennis Warehouse

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    How the retailer classifies it

    Power level
    Medium
    Stroke style
    Medium
    Swing speed
    Medium

    These are Tennis Warehouse's own labels for the frame, not measurements.

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