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Compare bowling balls

Core numbers are compared in one weight. Some brands only publish them for one weight.

Weight Pick other balls
Hammer Black Widow Spare+ Hammer Black Widow Spare+
Brand Hammer
Line Spare Ball
Coverstock Polyester
Cover type Polyester
Core Gas Mask
Core type Asymmetric
RG 2.480
Diff 0.058
Int. diff 0.013
Factory finish 500, 1000, 2000 Siaair / Factory Polish
Lane condition Light oil
Flare potential —
Reaction Straight
Color White Diamond
Release date September 17, 2026
Status Current

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