Roto Grip UFO Alert Bowling Ball

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Drilling Protection Plan

If your new ball cracks while being drilled by a pro shop, will replace your ball free of charge! Manufacturers' warranties typically do not cover for cracking during drilling and drillers are not held responsible for their mistakes or defects in the ball.

*Ball must be purchased from
*Ball must be drilled within 11 days of receiving it (Extended to Feb 1, for purchases made between Black Friday and Christmas).
*Protection must be purchased before the ball is drilled.
*Ball pictures must be sent for inspection and the receipt for drilling charges included also.
*We pay shipping back to you.

Extended Warranty

Valid for 2 full years from date of purchase. Covers manufacturing defects of balls, bags & shoes.

This warranty does not cover incidental costs of replacement including, but not limited to; freight, measuring, and drilling.

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Our obsession with helping players of all ages and styles conquer various lane conditions while abiding to forthcoming governing rules, led to the development and creation of the asymmetrical E.T.™ Core (Equalizer Technology Core) which features built in cavities in order to increase weight displacement after drilling without a balance hole to increase overall ball motion. 

E.T.™ Core = Equalizer Technology Core. This space aged creation was developed with built in cavities at the base of the inner block to emulate the use on an extra hole depending on how you drill it since balance holes are no longer legal in sanctioned competition. The premise of the lower RG and high differential naturally translates to more flare potential, but, add in these “equalizer cavities” and you have yourself built in increased dynamics after drilling. 

Our purest form of reactive material to date, the Enhanced Traction (eTrax) coverstock sets the standard as the material to which all other materials are compared and tested. Formulated to provide the “true reactive” response on a variety of conditions by easily clearing the front of the lane while aggressively responding to friction down lane, the eTrax material flexes its resilience and durability day in and day out. 

Engineered For - Medium to Medium-Heavy Oil Conditions. 

More Information
Manufacturer Part Number BBMRAE
Performance Level High Performance
Lane Condition Medium to Heavy Oil
Coverstock e-Trax™ Hybrid
Cover Type Hybrid Reactive
Core E.T.™ Core = Equalizer Technology™ (14-16 lbs.)
Light Weight Core Modified Triliptic Core (12-13 lbs.)
Core Type Asymmetric
Finish 1500 Grit Polished
Color Purple Solid / Emerald / Teal
RG / DIFF / ASY #12 - 2.59 / .029 / .008
#13 - 2.57 / .032 / .010
#14 - 2.52 / .054 / .016
#15 - 2.52 / .054 / .016
#16 - 2.52 / .054 / .016
Flare High
Recommended Cleaner Storm Reacta Foam
Recommended Polish Storm Xtra Shine
Brand Roto Grip
Manufacturer Storm
Launch Date July 2, 2021
Warranty 1 Year Limited Warranty
Special Price 179.95
Return period 60 days
Exchange period 30 days
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Roto Grip UFO Alert
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