Weight
15 pounds
PBA Approval Date
Release Date
Discontinued
Featuring the High Mass Bias Gas Mask core with flip block and Violent Reactive coverstock, the Black Widow goes long and attacks violently on the backend. There’s no lane condition out there that’s safe.
Factory Finish
Matte
Violent Coverstock
Type
Solid Reactive
Gas Mask Core
The Gas Mask core is the most iconic weight block in bowling. It is known for its large flare potential, versatility amongst bowling styles and its backend bite.
Core Type
Asymmetric
16 pounds
RG
2.510
Diff
0.048
MB Diff
0.015
15 pounds
RG
2.500
Diff
0.058
MB Diff
0.016
14 pounds
RG
2.500
Diff
0.056
MB Diff
0.016
13 pounds
RG
2.589
Diff
0.043
MB Diff
0.011
12 pounds
RG
2.612
Diff
0.043
MB Diff
0.011
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