Modelo F - This is the "Modelo F" variant of Bonna's traditional bass case (our item 100572). It is the same in nearly all regards with the exception that the lower hinged section is about a half inch (1.25cm) deeper to accommodate some models with wider valve sections. The weight is only slightly higher by about 1/4 pound (0.12 kg) as a result. Otherwise it's the same case as the standard 100572. -cdp
Features include: