We recommend buying a bell protector to accompany the softer Marcus Bonna cases, such as the backpack bag, MB-S1, or MB-S2.
The bell protectors come in Small, Medium, or Large. If you are unsure which size your bell will need, please call us at 817-993-6400 ex. 1 and a sales associate will test it on a similar bell.
Small - 12 cm (4.72 in)
Medium - 12.5 cm (4.92 in)
Large - 13 cm (5.12 in)
Place your bell protector on a flat surface and stick a ruler inside to determine the bell height you need. When in doubt, size up: too big is no problem but too small could leave parts of the bell unprotected.
Most horns generally take medium bell protectors. Yamahas, Schmids, and Ricco Kühns generally need large bell protectors. Paxmans generally need small bell protectors. But please measure your own individual horn.