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Hammer Web MB Bowling Ball


Pearl Reactive


Medium Oil



2.48 (15lb)

.048 (15lb)

.018 (15lb)


Spheroid Asymmetrical

Semtex NE Pearl

500, 1000 Siaair / Crown Factory Compound

Dark Blue/Purple


Mid Performance

Hammer Web MB Bowling Ball

(3 customer reviews)


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Hammer Web M.B. Bowling Ball Features:

The Hammer Web MB features an elongated version of the Spheroid core from the Web, Web Pearl, and Rhodman Pearl, combined with the brand new Semtex NE Pearl coverstock. The elongation of the core design adds an intermediate differential, making this the first asymmetrical ball under the Web nameplate. The blue/purple with sparkle coverstock comes out of the box finished with 500/1000 SiaAir and Crown Factory Compound, providing increased length compared to the other new release in this line, the Black Widow 2.0. The glossy box finish wastes very little energy getting downlane and easily glides to the breakpoint.

The Web series of balls has quickly become synonymous with performance and has been revered by Hammer fans. The Web and Web Tour offered two distinctly different core numbers, producing versatility, and helps fill out any bowler’s arsenal. The Web M.B. (Mass Bias) incorporates an elongated version of the Spheroid Core shape, creating asymmetry and more ball reaction shapes for the Web and Hammer lovers.

The Web M.B. booms on the backend, its shiny finish and easy length create a perfect match with the Black Widow 2.0. The cover is a familiar and popular Semtex base, found on previous Black Widow balls, and is enhanced with new additives for ideal performance on medium oil.


3 reviews for Hammer Web MB Bowling Ball

  1. David Varner

    Great addition to the hammer line. To me this ball is a blend of the black widows of the past and the web. Elongated spheroid core and Semtex pearl cover stock! The web m.b offers easy length for those struggling to get the ball through the front part of the lane and comes off the spot hard with great continuation. I think this ball will end up being a house shot killer! I forgot to mention the shelf appeal of this ball is on point as well, it’s beautiful!!

  2. Matthew Staninger

    First off, pictures do no justice at how great the Web M.B. looks. This ball might be the cleanest release Hammer had made in years, meaning the ball holds it’s energy for friction really well. I see this being great for a mix of patterns after some transition has happened. This is also an amazing choice for those house shots that let you open the lane up some. I highly recommend this as a ball to go to when the Web Tour Hybrid isn’t storing enough energy.

  3. Josh Solomon

    If you like the WEB series you will love this ball. It is clean through the heads and responds well to friction. It is great for getting left and always makes the corner. This is a must have ball!

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