
The Fatboy is at home in the world's most prestigious concert halls, famous jazz clubs, and everything in between. It's our best-selling barrel, and for good reason. Artists who are called upon to interpret a wide variety of music appreciate the Fatboy Barrel’s unique flexibility and versatility. Note: In Japan, this model is known as the Backun Barrel. This is the Cocobolo "standard fit" 64mm barrel for A/Bb clarinets.
Includes: One barrel, one velvet bag, and one barrel tube
Fit and Sizing - Standard fit pairs with:
- Backun
- Buffet
- Yamaha
- Leblanc
- Selmer USA (Centered Tone, 10G, Series 9)
Please feel free to email with any additional questions!
We are proud to be an authorized Backun dealer
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99
Backun Fatboy A/Bb Clarinet Barrel, Cocobolo, 64mm, Standard Fit
The Fatboy is at home in the world's most prestigious concert halls, famous jazz clubs, and everything in between. It's our best-selling barrel, and for good reason. Artists who are called upon to interpret a wide variety of music appreciate the Fatboy Barrel’s unique flexibility and versatility. Note: In Japan, this model is known as the Backun Barrel. This is the Cocobolo "standard fit" 64mm barrel for A/Bb clarinets.
Includes: One barrel, one velvet bag, and one barrel tube
Fit and Sizing - Standard fit pairs with:
- Backun
- Buffet
- Yamaha
- Leblanc
- Selmer USA (Centered Tone, 10G, Series 9)
Please feel free to email with any additional questions!
We are proud to be an authorized Backun dealer
Pairs well with
In stock! Ships within 1-2 business days.
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99

Backun Fatboy A/Bb Clarinet Barrel, Cocobolo, 64mm, Standard Fit
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders valued over $99 ship via FedEx 2-Day within the U.S. and via DHL internationally. A physical address (no P.O. Boxes) and signature are required. Smaller accessories ship via USPS (2–5 day service) and do not require a signature if valued under $99. Please see our FAQ for additional details.
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Return Policy
We offer an unconditional 30-day return policy to ensure you’re completely satisfied. If you’re unhappy for any reason, return the item for a full refund or full exchange credit (reeds and other consumables are non-returnable once opened). Every instrument we sell is guaranteed to be free of mechanical defects—if an issue arises, contact us and we’ll either reimburse a local repair or provide a prepaid return label for repair, exchange, or refund. If you simply change your mind, you may still return the item for a full refund, but return shipping costs are the customer’s responsibility unless free returns were purchased through Redo at checkout. Please see our FAQ for additional details.
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Shop Warranty:
Brand new items are covered by the full manufacturer’s warranty unless otherwise noted (see the individual maker for details). Open box, used, and vintage items include a two-year warranty serviced by our in-house repair shop, and we guarantee every instrument will be free of mechanical defects. Warranty coverage does not include damage from accident, misuse, negligence, improper operation, unauthorized alterations or removed serial numbers, normal wear and routine maintenance, environmental damage (including perspiration, corrosion, or extreme temperature and humidity), lacquer or plating wear, or consumable parts such as springs, pads, and felts. Please see our FAQ for additional details.

