Hammer
The Hammer Black Widow Pearl bowling ball. RG 2.500 and differential 0.060 at 15 lb. No longer made.
The Black Widow Pearl features the High Mass Bias Gas Mask core with flip block and the Violent Reactive Pearl coverstock to provide more length and more aggressive breakpoint on medium oil lane conditions. Black Widow Pearl is a great compliment to the original Black Widow.
Keep your arsenal in BowlingMaat: weight, layout, surface and maintenance of every ball in one place. Free, and no games to log.
|
Weight
|
RG
|
Diff
|
|---|---|---|
| 16 lb | 2.510 | 0.049 |
| 15 lb | 2.500 | 0.060 |
| 14 lb | 2.490 | 0.057 |
| 13 lb | 2.530 | 0.055 |
| 12 lb | 2.600 | 0.039 |
Current balls from any brand with the closest RG, differential, cover and lane condition: an alternative, or a second ball that reacts alike.