Love my new MB 5 Flex! Once I got my Hill horn bell cut, it was very difficult to find a case to fit it…but true to its claim to fame, the MB 5 Flex truly does fit all horns!
The cutting edge in French horn case design!
The MB-5 Flex is the latest variation on the extremely popular MB-5 line. It is approximately one inch larger than the MB-5 Baby cases so that it fits nearly any horn, including Yamahas. But it is still compact and airline-friendly. And with the entire horn surrounded with a hard fiberglass shell, it is prepared for whatever bumps it may encounter on the road.
Marcus Bonna conducted extensive research on larger horns when designing the Flex case, so it even fits wide-bodied Hoyer G10s, taller-bell Yamahas, and many triple horns! Pictured: a Hoyer G10 fits perfectly! But please don't hesitate to contact us if you have questions about the fit.
Marcus Bonna has an awesome new tool here that lets you design your own MB-5 Flex online! Once you're happy with the design, follow the instructions on this page to place the special order with us, and you'll have your own custom-made case.
22 x 14.5 x 9 in
8.05 lb
WARNING:Â 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:
Most new instruments and accessories over $75 are eligible for free shipping to the continental US.
Thein instruments, tubas, and pre-owned instruments are excluded from free shipping.
Click here for our full shipping policy.
Most products sold in the United States 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.
Unfortunately, as of May 12, 2025, we can no longer offer returns, exchanges, or refunds to international customers due to the tariff situation. We hope to restore international returns soon.
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!
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The cutting edge in French horn case design!
The MB-5 Flex is the latest variation on the extremely popular MB-5 line. It is approximately one inch larger than the MB-5 Baby cases so that it fits nearly any horn, including Yamahas. But it is still compact and airline-friendly. And with the entire horn surrounded with a hard fiberglass shell, it is prepared for whatever bumps it may encounter on the road.
Marcus Bonna conducted extensive research on larger horns when designing the Flex case, so it even fits wide-bodied Hoyer G10s, taller-bell Yamahas, and many triple horns! Pictured: a Hoyer G10 fits perfectly! But please don't hesitate to contact us if you have questions about the fit.
Marcus Bonna has an awesome new tool here that lets you design your own MB-5 Flex online! Once you're happy with the design, follow the instructions on this page to place the special order with us, and you'll have your own custom-made case.
22 x 14.5 x 9 in
8.05 lb
WARNING:Â 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:
Most new instruments and accessories over $75 are eligible for free shipping to the continental US.
Thein instruments, tubas, and pre-owned instruments are excluded from free shipping.
Click here for our full shipping policy.
Most products sold in the United States 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.
Unfortunately, as of May 12, 2025, we can no longer offer returns, exchanges, or refunds to international customers due to the tariff situation. We hope to restore international returns soon.
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!
Overall rating: 4.8 / 5 from 13 reviews.
Love my new MB 5 Flex! Once I got my Hill horn bell cut, it was very difficult to find a case to fit it…but true to its claim to fame, the MB 5 Flex truly does fit all horns!
Colleen W. 5/5 Verified
I needed a sturdy case for my new Yamaha 871 that could be a carry-on for every major airline. The Houghton Horns own Josh Davis was super helpful and sent me the case all set up for the 871! We flew recently and I placed the case in every carry-on sizing box for every airline and it FIT everyone. Not to mention it’s a fantastic looking case!!! Thanks Houghton Horns and Josh!! Oh and Marcus Bona. You always get what you pay for!!
Steven S. 5/5 Verified
We bought it as a surprise birthday gift for our niece and she started crying when she opened it. It fits twice as much and weighs half as much as her old case. Thank you for a superior product!
Melissa B. 5/5 Verified
This case is everything I was looking for! My horn, oils, both mutes, my iPad and my iPad pedal all fit. I had a few questions about the case and Houghton was very helpful. Thank you!
Macheala T. 5/5 Verified
Jonathon was great helping me find the right case for my horn and I had no issues via the shipping. Love the case TR🎶🎵
Terri R. 5/5 Verified
Love the case, but the customer service was only fine. When I called, the people I talked to seemed unsure. Once I placed my order, a representative contacted me because the color I wanted was not available, despite the website saying it was. Every email was really nice and I love the color of my case now, but I wish the site was completely accurate to what is in stock.
Aiden L. 5/5 Verified
My son has received numerous compliments on the case. It looks sharp! He is so happy with how everything is organized and how sturdy it is. Great purchase.
Mary Ann O. 5/5 Verified
Very compact and light! Wide-bodied Hoyer 801 fits well in it.
Ageeth B. 5/5 Verified
Customer service was above and beyond what was expected, even hoped for, as was the quality of the case! Thank you for making sure that we ordered exactly was what we needed! We couldn't be happier with our purchase!
Ashley G. 5/5 Verified
Customer service was excellent. Shipping was fast. Product is top notch!! Great experience!
Rebekah L. 5/5 Verified
My new Ricco Kuhn is cradled in style. I love the green cationic.
Barbara H. 5/5 Verified
Worth every penny!
Rebecca C. 5/5 Verified
I am happy with the quality of the case and look forward to using it, after I figure out how to attach the straps. I expected to clip them on. I read the card that showed the QR code to learn how to put the straps on, which I thought was unusual. Using the QR code, it took me to a video that I watched and still had questions. Is there any way I can order straps that simply clip on?? I haven't used the case yet because of the straps.
Aimee P. 3/5 Verified
