Hammer Black Pearl Urethane vs. Hammer Pure Envy

Compare the specs of the Hammer Black Pearl Urethane and Hammer Pure 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	Black Pearl Urethane	Pure Envy
Cover Name	Urethane Pearl 78D	HK22 - Cohesion Hybrid
Cover Type	Urethane Pearl	Reactive Hybrid
Box Finish	500 SiaAir	500 / 2000 SiaAir
Color	Black Pearl	Black / Pink / Purple
Core Name	LED	Launcher
Core Type	Symmetrical	Asymmetrical
RG	2.650	2.505
Total Diff.	0.015	0.055
Int. Diff.	0.000	0.021
Torque Length Back End Total Hook Ball Tester Ratings	See Performance Ratings... Already a premium member? Click here to log in.

The graph below shows a visual comparison of the selected balls. Hover over each colored circle in the graph to see that ball’s name and ratings. Click a circle to view that ball’s full review.

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Bowling Ball Comparison Graph