The MB-4 is a detachable bell flight case. It sports a very lean design, and includes a music pouch that attaches with velcro.

This model fits a medium-sized detachable bell French horn, and some larger-sized horns.

The bell is positioned on top of the French horn body, inside a foam bell protector. A velcro belt keeps the instrument's body fixed and secured. Accessories can be stored inside the case and in the exterior sheet music bag.

Measurements: 22cm x 35cm x 55cm

The case includes:

• 2 backpack straps

• 1 shoulder strap

• 1 mouthpiece pouch for three mouthpieces

• 1 foam bell protector with support for mute

• 1 foam bag with zipper for oil and accessories

• 1 identification tag

Is this the right Marcus Bonna case for my horn?

Don't see the colors you like here? Check out the Marcus Bonna Options page.

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Marcus Bonna cases have been an extremely popular choice for brass players since 1991. All MB cases are lightweight, compact, and durable. Fiberglass (or carbon fiber) shell, nylon (or leather) exterior. High-quality stitching and components. Handmade in Brazil.

WARNING: Brass instruments and their accessories can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm, and Nickel, which is known to the State of California to cause cancer. For more information go to:

www.P65Warnings.ca.gov

Most new instruments and accessories over $75 are eligible for free shipping to the continental US.

Sheet music, tubas, and pre-owned instruments are excluded from free shipping.

Click here for our full shipping policy.

Most products receive a 15-day return policy that starts on the day the customer receives their order. The customer is responsible for the cost of initial and return shipping, except in the case of new French horns, trumpets, and trombones, which will receive free return shipping from 48 US states. There will be a $5 cleaning fee for each returned mouthpiece.

Some product categories are ineligible for return, which include special orders, sheet music, consumables such as lubricants or cleaning snakes, and personal items such as clothing or face masks.

For non-US customers, shipping, taxes, duties, and customs fees are non-refundable.

See the policy links at the bottom of our website for more information.

Click here to request a return.

Any product labelled "Special Order" is a final sale, no refunds or exchanges. Likewise, any product that has been customized at the customer's request can no longer be returned.

Click here for more information on special orders. If you want it, we will try our best to get it to you!