# Storm XOBC Marvel Pearl

> Bowling ball — data from CarryDown (https://www.carrydown.com/balls/storm-xobc-marvel-pearl/)

- Brand: Storm
- Availability: current
- Released/approved: 2026-06-16
- Coverstock: [R2X Pearl Reactive](https://www.carrydown.com/brands/storm/coverstocks/r2x/) (pearl)
- Core: [Centripetal Core](https://www.carrydown.com/brands/storm/cores/centripetal-core/) (symmetric)
- Intended condition: Medium-heavy oil
- Factory finish: Power Edge™
- Flare potential: Medium-High
- List price (MSRP): no manufacturer price found
- USBC approved: yes (2026-06-16)

## Specs by weight

| Weight | RG | Differential | Int. Diff | Mass Bias |
|---|---|---|---|---|
| 15 lb | 2.48 | 0.05 | — | — |
| 14 lb | 2.53 | 0.049 | — | — |

## Description

One-time, limited-quantity charity release built on the same mold as the 2011 Storm Marvel Pearl (same R2X Pearl Reactive coverstock and Centripetal Symmetrical Core; RG/differential confirmed against the archived 2011 product page, web.archive.org/web/20111208222241/stormbowling.com/products/balls/marvelpearl). New black/pink colorway, Power Edge factory finish, and Strawberry Shortcake fragrance. Third ball in the X Out Breast Cancer (#SpareTheGirls) benefit series after the 2021 pink and 2024 black spare balls and the 2025 25th Anniversary performance ball. Proceeds support the X Out Breast Cancer Foundation.