Black Widow Urethane - Original

Hammer Black Widow Urethane - Original bowling ball image

Solid Urethane Coverstock

Gas Mask Asymmetric Core

16 lb 15 lb 14 lb 13 lb 12 lb
RG 2.51 2.5 2.5 2.589 2.612
Diff 0.048 0.058 0.056 0.043 0.043
Length 44% 38% 38% 93% 108%
Flare 73% 96% 91% 62% 62%



  • Factory Finish:
    360/500/500 Abralon

From Hammer:

In the 1980’s, Hammer was known as “Faball Enterprises” and was the industry leader in urethane technology and performance. Over the past few years, we have gone back to our roots and brought back the Black and Purple Pearl Urethane. Hammer is excited to bring this same trusted urethane formula to the Black Widow line and wrap it around our most iconic core. This combination will give you more overall hook than traditional urethane while maintaining the predictability that a urethane coverstock provides.