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SWAG Unknown Solid Bowling Ball
Original price was: $249.95.$149.95Current price is: $149.95.
What should I know about the Unknown Solid?
•Debut Watcher Symmetric Core: RG 2.51, Diff .048 at 15 lb, the classic benchmark recipe
•First-ever Mystery Solid AP26 coverstock on the USBC-approved Adhesion Promotion platform
•3000 Abralon box finish for a smooth, blendable read on medium to heavy fresh oil
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Description
The New Benchmark of the Utility Line
About the Unknown Solid
Every SWAG ball announces itself. The SWAG Unknown Solid does the opposite: dressed in True Blue and Steel Blue with a silver-sparkle mark, it arrives with no legacy and no expectations, and quietly becomes the new benchmark of the Utility Performance Line.
Underneath is a completely new combination: the debut Watcher Symmetric Core wrapped in the first-ever Mystery Solid AP26 coverstock at a 3000 Abralon finish. Together they produce a smooth, honest, read-anything solid built to turn unfamiliar patterns into familiar ones.
Understanding the SWAG Watcher Symmetric Core and SWAG Mystery Solid AP26
SWAG built the Unknown Solid to be the ball you throw first. Specifically, the new Watcher Symmetric Core measures RG 2.51 and Differential .048 at 15 lb, classic benchmark numbers, while the debut Mystery Solid AP26 cover uses Adhesion Promotion technology to keep traction consistent as conditions change. As a result, you get a smooth, blendable midlane read and a predictable shape that repeats frame after frame. The full per-weight specs are listed below.
A Brand-New Core Built to Read the Lane
The Watcher Symmetric Core is brand new for 2026, designed to anchor SWAG’s Utility Performance Line. At 15 lb it measures RG 2.51 and Differential .048: enough flare to grip the midlane, enough control to keep the breakpoint honest.
Where SWAG’s Advanced Tech cores are built to overpower the lane, the Watcher is built to read it. It revs up smoothly, rolls forward predictably, and gives you the same look every time you throw it.
The Debut of the Mystery Coverstock Line
The Unknown Solid introduces Mystery AP26, a brand-new SWAG coverstock line. It is a solid reactive built on Adhesion Promotion technology: coupling agents fill microscopic gaps in the cover to enlarge its contact footprint, delivering more traction, better oil absorption, and a longer usable cover life. At a 3000 Abralon finish it is tuned for medium to heavy fresh oil with a smooth, blendable motion.
Unknown Solid Specs
RG and differential vary by weight. Specifications provided by the manufacturer.
Who This Ball Is Right For
✓League Bowlers: The easiest ball in the SWAG lineup to keep in play: early traction, smooth blend, no surprises
✓Tournament Players: Throw it first, learn the lane, then reach for more surface or more angle with confidence
✓High-Rev Players: A forward, connected roll that stays composed when the pattern transitions
✓Arsenal Builders: The classic control recipe that anchors the middle of any serious bag
Good to Know Before You Buy
·Strong, aggressive motion: This is a high-flare piece built for traction. If you want a controlled, lower-hook reaction, a lower-differential ball will suit you better.
·Ships at a clean box finish: The 3000 Abralon finish is a smooth, sanded surface that still gets down the lane. Take it lower for an earlier read on heavier oil, or polish it up for more length.
·Sold undrilled: Ships without finger holes, so it can be fitted to your hand and span.
BowlersMart Tips: Where the Unknown Solid Fits in Your SWAG Arsenal
Where It Fits in Your Arsenal
In the SWAG lineup, the Unknown Solid is the benchmark in the middle: below the Executioner Solid and Black Dragon Hybrid for the heavy fresh, above the pearls for transition. Throw it first, let it read the lane, and let the result tell you which direction to move.
Surface Adjustments
The 3000 Abralon box finish is the intended setup. Refresh it to restore the read, or adjust a step in either direction to tune length; AP26 covers resist the micro-cracking aggressive resurfacing can cause. Have surface work done at your pro shop.
Coverstock Care
A benchmark ball only works if it reads the same every week. Regular wiping and periodic deep cleaning keep the Mystery Solid AP26 cover reacting consistently, which is the entire job of this ball.
Earn points on every SWAG purchase through the Striking Rewards loyalty program. Every ball you add to your arsenal builds toward your next reward.
Shop With Confidence at BowlersMart
The SWAG Unknown Solid Bowling Ball ships free with no minimum purchase and is backed by our 60-day return policy. As an authorized SWAG dealer, every ball is genuine and covered by the full one-year SWAG warranty. Place your order before 2 PM EST and it ships the same day.
Additional information
| Weight | N/A |
|---|---|
| Dimensions | 10 × 10 × 10 in |
| Brand | |
| Bowling Ball Coverstock Type | |
| Bowling Ball Cover Name | |
| Bowling Ball Core Shape | |
| Bowling Ball Core Name | |
| Radius of Gyration: RG (15LB) | |
| Differential: Diff (15LB) | |
| Mass Bias Strength | |
| Flare Potential | |
| Surface Finish | |
| Preferred Lane Conditions | |
| Ball Weight | |
| Bowling Ball Color | |
| Ball Performance Level | |
| Release Date |
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Everyday Free Shipping
Place your order before 2PM EST Monday - Friday (excluding holidays) and your order will ship out same day for in stock and available products. In stock items will ship out the following weekday if purchased after 2PM EST.
In stock Items may take 3-5 business days to arrive depending on your location. (2-10 days in AK, HI, PR, GU, APO, FPO).
We use USPS Priority Mail, Parcel Post, UPS and FedEx as our methods of shipping. Ground Shipping is ALWAYS free in the USA (except Alaska, Hawaii, Puerto Rico, Guam, and APO / FPO addresses), no matter how many items you order, no matter the weight, no matter the distance!
International Shipping - Duties, & Taxes & Return Information
Duties & Taxes - If shipping international, duties and taxes will need to be paid locally. BowlersMart.com is not responsible for any local duties or tax fees.Returns - We gladly ship worldwide, but please note that international customers are responsible for all return shipping and handling costs. If you wish to return your order, you must cover all shipping fees, duties, and any additional charges incurred. We recommend using a trackable shipping method to ensure your return reaches us safely. For more details, please review our full return policy or contact our customer support team.
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WARNING:
This product can expose you to chemicals including Lead, Phthalates, and/or other chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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