Hammer Effect vs. Hammer Extreme Envy

Compare the specs of the Hammer Effect and Hammer Extreme Envy side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.

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Brand	Hammer	Hammer
Ball Name	Effect	Extreme Envy
Cover Name	HK22 – Cohesion Pearl	Envy CFI Solid
Cover Type	Reactive Pearl	Reactive Solid
Box Finish	500 / 1000 / 1500 SiaAir / Factory Compound	500 / 2000 SiaAir
Color	Maroon / Blue / Black / Purple	Black / Crimson / White
Core Name	Huntsman	Launcher LRG
Core Type	Asymmetrical	Asymmetrical
RG	2.470	2.479
Total Diff.	0.050	0.054
Int. Diff.	0.017	0.022
Torque Length Back End Total Hook Ball Tester Ratings	See Performance Ratings... Already a premium member? Click here to log in.

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Bowling Ball Comparison Graph