StrikeStack
Ball library
Hammer Black Widow Mania Solid bowling ball

Hammer

Black Widow Mania Solid

Released May 2025

Heavy OilEarly HookAngular
Hook strength
10/10

Specs

Coverstock
HK22C - Cohesion Solid Solid Reactive
Core
Gas Mask Asymmetric
RG
2.500
Differential
0.058
Intermediate diff (mass bias)
0.016
Factory finish
500/1000/1500 Siaair Micro Pad
Released
May 2025

The oil, hook and strength labels are StrikeStack's estimate from the published specs, not the manufacturer's rating. Specs provided by bowwwl.com.

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